<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncements" xlink:href="lbtya-20180930.xsd#AccountingChangesAndRecentAccountingPronouncements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncementsDetails" xlink:href="lbtya-20180930.xsd#AccountingChangesAndRecentAccountingPronouncementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncementsPolicies" xlink:href="lbtya-20180930.xsd#AccountingChangesAndRecentAccountingPronouncementsPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncementsTables" xlink:href="lbtya-20180930.xsd#AccountingChangesAndRecentAccountingPronouncementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AcquisitionsAndDispositions" xlink:href="lbtya-20180930.xsd#AcquisitionsAndDispositions" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AcquisitionsAndDispositions2017AcquisitionDetails" xlink:href="lbtya-20180930.xsd#AcquisitionsAndDispositions2017AcquisitionDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AcquisitionsAndDispositionsPendingAndCompletedDispositionsDetails" xlink:href="lbtya-20180930.xsd#AcquisitionsAndDispositionsPendingAndCompletedDispositionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AcquisitionsAndDispositionsPendingAndCompletedDispositionsNarrativeDetails" xlink:href="lbtya-20180930.xsd#AcquisitionsAndDispositionsPendingAndCompletedDispositionsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/AcquisitionsAndDispositionsTables" xlink:href="lbtya-20180930.xsd#AcquisitionsAndDispositionsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/BasisOfPresentation" xlink:href="lbtya-20180930.xsd#BasisOfPresentation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/BasisOfPresentationNarrativeDetails" xlink:href="lbtya-20180930.xsd#BasisOfPresentationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CommitmentsAndContingencies" xlink:href="lbtya-20180930.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:href="lbtya-20180930.xsd#CommitmentsAndContingenciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CommitmentsAndContingenciesTables" xlink:href="lbtya-20180930.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CommitmentsAndContingenciesUnrecordedPurchaseObligationDetails" xlink:href="lbtya-20180930.xsd#CommitmentsAndContingenciesUnrecordedPurchaseObligationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedBalanceSheetsUnaudited" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedBalanceSheetsUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedBalanceSheetsUnauditedParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedStatementOfEquityUnaudited" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedStatementOfEquityUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedStatementsOfCashFlowsUnauditedCalc2" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedStatementsOfCashFlowsUnauditedCalc2" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedStatementsOfCashFlowsUnauditedParenthetical" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedStatementsOfCashFlowsUnauditedParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedStatementsOfComprehensiveEarnignsLossUnaudited" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedStatementsOfComprehensiveEarnignsLossUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/CondensedConsolidatedStatementsOfOperationsUnaudited" xlink:href="lbtya-20180930.xsd#CondensedConsolidatedStatementsOfOperationsUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligations" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsCapitalLeaseObligationsScheduleDetails" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsCapitalLeaseObligationsScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsCapitalLeaseObligationsScheduleDetailsCalc2" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsCapitalLeaseObligationsScheduleDetailsCalc2" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsComponentsOfDebtAndCapitalLeaseObligationsDetails" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsComponentsOfDebtAndCapitalLeaseObligationsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsComponentsOfDebtAndCapitalLeaseObligationsDetailsCalc2" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsComponentsOfDebtAndCapitalLeaseObligationsDetailsCalc2" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsFinancingTransactionsDetails" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsFinancingTransactionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsMaturitiesOfDebtDetails" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsMaturitiesOfDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsMaturitiesOfDebtDetailsCalc2" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsMaturitiesOfDebtDetailsCalc2" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsTables" xlink:href="lbtya-20180930.xsd#DebtAndCapitalLeaseObligationsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstruments" xlink:href="lbtya-20180930.xsd#DerivativeInstruments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsBasisSwapsInterestRateCapsAndCollarsDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsBasisSwapsInterestRateCapsAndCollarsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsCrossCurrencyDerivativeContractsDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsCrossCurrencyDerivativeContractsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsFairValuesOfDerivativeAssetsAndLiabilitiesDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsFairValuesOfDerivativeAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsForeignCurrencyForwardsAndOptionsDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsForeignCurrencyForwardsAndOptionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsImpactOfDerivativeInstrumentsOnBorrowingCostsDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsImpactOfDerivativeInstrumentsOnBorrowingCostsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsInterestRateSwapContractsAndOptionsDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsInterestRateSwapContractsAndOptionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsNarrativeDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsNetCashReceivedPaidRelatedToDerivativesScheduleDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsNetCashReceivedPaidRelatedToDerivativesScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsRealizedAndUnrealizedGainsLossesOnDerivativesScheduleAndFootnotesDetails" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsRealizedAndUnrealizedGainsLossesOnDerivativesScheduleAndFootnotesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DerivativeInstrumentsTables" xlink:href="lbtya-20180930.xsd#DerivativeInstrumentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/DocumentAndEntityInformation" xlink:href="lbtya-20180930.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/EarningsOrLossPerShare" xlink:href="lbtya-20180930.xsd#EarningsOrLossPerShare" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/EarningsOrLossPerShareNarrativeDetails" xlink:href="lbtya-20180930.xsd#EarningsOrLossPerShareNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/EarningsOrLossPerShareSchedulesDetails" xlink:href="lbtya-20180930.xsd#EarningsOrLossPerShareSchedulesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/EarningsOrLossPerShareTables" xlink:href="lbtya-20180930.xsd#EarningsOrLossPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/Equity" xlink:href="lbtya-20180930.xsd#Equity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/EquityDetails" xlink:href="lbtya-20180930.xsd#EquityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/FairValueMeasurements" xlink:href="lbtya-20180930.xsd#FairValueMeasurements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/FairValueMeasurementsAssetsAndLiabilitiesReconciliationScheduleAndFootnoteDetails" xlink:href="lbtya-20180930.xsd#FairValueMeasurementsAssetsAndLiabilitiesReconciliationScheduleAndFootnoteDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/FairValueMeasurementsSummaryOfAssetsAndLiabilitiesAtFairValueScheduleDetails" xlink:href="lbtya-20180930.xsd#FairValueMeasurementsSummaryOfAssetsAndLiabilitiesAtFairValueScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/FairValueMeasurementsTables" xlink:href="lbtya-20180930.xsd#FairValueMeasurementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/IncomeTaxes" xlink:href="lbtya-20180930.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/IncomeTaxesNarrativeDetails" xlink:href="lbtya-20180930.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/IncomeTaxesReconciliationOfFederalToEffectiveTaxesScheduleDetails" xlink:href="lbtya-20180930.xsd#IncomeTaxesReconciliationOfFederalToEffectiveTaxesScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/IncomeTaxesTables" xlink:href="lbtya-20180930.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/Investments" xlink:href="lbtya-20180930.xsd#Investments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/InvestmentsNarrativeDetails" xlink:href="lbtya-20180930.xsd#InvestmentsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/InvestmentsSchedulesDetails" xlink:href="lbtya-20180930.xsd#InvestmentsSchedulesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/InvestmentsTables" xlink:href="lbtya-20180930.xsd#InvestmentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/LongLivedAssets" xlink:href="lbtya-20180930.xsd#LongLivedAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/LongLivedAssetsNarrativeDetails" xlink:href="lbtya-20180930.xsd#LongLivedAssetsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/LongLivedAssetsScheduleOfChangesInCarryingAmountOfGoodwillDetails" xlink:href="lbtya-20180930.xsd#LongLivedAssetsScheduleOfChangesInCarryingAmountOfGoodwillDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/LongLivedAssetsScheduleOfIntangibleAssetsSubjectToAmortizationNetDetails" xlink:href="lbtya-20180930.xsd#LongLivedAssetsScheduleOfIntangibleAssetsSubjectToAmortizationNetDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/LongLivedAssetsScheduleOfPpeDetails" xlink:href="lbtya-20180930.xsd#LongLivedAssetsScheduleOfPpeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/LongLivedAssetsTables" xlink:href="lbtya-20180930.xsd#LongLivedAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/RestructuringLiability" xlink:href="lbtya-20180930.xsd#RestructuringLiability" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/RestructuringLiabilityDetails" xlink:href="lbtya-20180930.xsd#RestructuringLiabilityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/RestructuringLiabilityTables" xlink:href="lbtya-20180930.xsd#RestructuringLiabilityTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/RevenueRecognitionAndRelatedCosts" xlink:href="lbtya-20180930.xsd#RevenueRecognitionAndRelatedCosts" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/RevenueRecognitionAndRelatedCostsDetails" xlink:href="lbtya-20180930.xsd#RevenueRecognitionAndRelatedCostsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReporting" xlink:href="lbtya-20180930.xsd#SegmentReporting" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReportingCapitalExpendituresOfReportableSegmentsDetails" xlink:href="lbtya-20180930.xsd#SegmentReportingCapitalExpendituresOfReportableSegmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReportingGeographicSegmentsDetails" xlink:href="lbtya-20180930.xsd#SegmentReportingGeographicSegmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReportingNarrativeDetails" xlink:href="lbtya-20180930.xsd#SegmentReportingNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReportingPerformanceMeasuresScheduleDetails" xlink:href="lbtya-20180930.xsd#SegmentReportingPerformanceMeasuresScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReportingReconciliationOfConsolidatedSegmentAdjustedOibdaScheduleDetails" xlink:href="lbtya-20180930.xsd#SegmentReportingReconciliationOfConsolidatedSegmentAdjustedOibdaScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReportingRevenueByMajorCategoryDetails" xlink:href="lbtya-20180930.xsd#SegmentReportingRevenueByMajorCategoryDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SegmentReportingTables" xlink:href="lbtya-20180930.xsd#SegmentReportingTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/ShareBasedCompensation" xlink:href="lbtya-20180930.xsd#ShareBasedCompensation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/ShareBasedCompensationAwardsOutstandingAndExercisableDetails" xlink:href="lbtya-20180930.xsd#ShareBasedCompensationAwardsOutstandingAndExercisableDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/ShareBasedCompensationNarrativeDetails" xlink:href="lbtya-20180930.xsd#ShareBasedCompensationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/ShareBasedCompensationShareBasedCompensationExpenseDetails" xlink:href="lbtya-20180930.xsd#ShareBasedCompensationShareBasedCompensationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/ShareBasedCompensationTables" xlink:href="lbtya-20180930.xsd#ShareBasedCompensationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SubsequentEvent" xlink:href="lbtya-20180930.xsd#SubsequentEvent" xlink:type="simple" />
  <link:roleRef roleURI="http://www.lgi.com/role/SubsequentEventDetails" xlink:href="lbtya-20180930.xsd#SubsequentEventDetails" xlink:type="simple" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncements" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncementsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncementsPolicies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AccountingChangesAndRecentAccountingPronouncementsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AcquisitionsAndDispositions" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AcquisitionsAndDispositions2017AcquisitionDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AcquisitionsAndDispositionsPendingAndCompletedDispositionsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_197c47d4-bc5c-2203-067f-02363a4fbfd8" xlink:type="locator" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_DisposalGroupIncludingDiscontinuedOperationDebtandCapitalLeaseObligationsCurrent" xlink:label="loc_lbtya_DisposalGroupIncludingDiscontinuedOperationDebtandCapitalLeaseObligationsCurrent_90b6f24c-427e-ac03-9564-ab8196217573" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_197c47d4-bc5c-2203-067f-02363a4fbfd8" xlink:to="loc_lbtya_DisposalGroupIncludingDiscontinuedOperationDebtandCapitalLeaseObligationsCurrent_90b6f24c-427e-ac03-9564-ab8196217573" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent_2cc1c5ed-f670-2343-21ed-da235dc9b2e1" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_197c47d4-bc5c-2203-067f-02363a4fbfd8" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent_2cc1c5ed-f670-2343-21ed-da235dc9b2e1" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_DisposalGroupIncludingDiscontinuedOperationDebtandCapitalLeaseObligationsNoncurrent" xlink:label="loc_lbtya_DisposalGroupIncludingDiscontinuedOperationDebtandCapitalLeaseObligationsNoncurrent_87ed97be-ec5d-6c52-11ff-ab81956521ba" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_197c47d4-bc5c-2203-067f-02363a4fbfd8" xlink:to="loc_lbtya_DisposalGroupIncludingDiscontinuedOperationDebtandCapitalLeaseObligationsNoncurrent_87ed97be-ec5d-6c52-11ff-ab81956521ba" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_970f6914-8a5f-5d59-d847-a4044c39cc01" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_197c47d4-bc5c-2203-067f-02363a4fbfd8" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_970f6914-8a5f-5d59-d847-a4044c39cc01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_672ec469-d9ef-243b-20f2-585387010cf4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_9c6f5a6e-b79a-c5c7-b7c6-f5315fdec09a" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_672ec469-d9ef-243b-20f2-585387010cf4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_9c6f5a6e-b79a-c5c7-b7c6-f5315fdec09a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_39455111-9980-e1f9-5ee1-50ca38e0457a" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_672ec469-d9ef-243b-20f2-585387010cf4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_39455111-9980-e1f9-5ee1-50ca38e0457a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent_99ce8336-cfae-c9ea-4278-a6967e96c0d7" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_672ec469-d9ef-243b-20f2-585387010cf4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent_99ce8336-cfae-c9ea-4278-a6967e96c0d7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_b7cd1625-9e3c-30f4-e74d-a5259d6565bf" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_672ec469-d9ef-243b-20f2-585387010cf4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_b7cd1625-9e3c-30f4-e74d-a5259d6565bf" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_5b931a9a-8475-ddfa-f7f0-ce511990c1b0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest_98c10b37-bcd2-6eb8-f0e0-80d318ea8fc4" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_5b931a9a-8475-ddfa-f7f0-ce511990c1b0" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest_98c10b37-bcd2-6eb8-f0e0-80d318ea8fc4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_5b931a9a-8475-ddfa-f7f0-ce511990c1b0" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_e6c2b52f-6843-2914-0fae-f74995d125a1" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_e6c2b52f-6843-2914-0fae-f74995d125a1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:label="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_925a043d-18b3-5d03-8e0b-c0fb4146cd8c" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:to="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_925a043d-18b3-5d03-8e0b-c0fb4146cd8c" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/AcquisitionsAndDispositionsPendingAndCompletedDispositionsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/AcquisitionsAndDispositionsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/BasisOfPresentation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/BasisOfPresentationNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/CommitmentsAndContingencies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/CommitmentsAndContingenciesTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/CommitmentsAndContingenciesUnrecordedPurchaseObligationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationDueInRemainderOfFiscalYear" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueInRemainderOfFiscalYear_4A3722939E275C45A239C6621D10B537" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueInRemainderOfFiscalYear_4A3722939E275C45A239C6621D10B537" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_3A1F529539FA5B148F434EF76268DFBD" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_3A1F529539FA5B148F434EF76268DFBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_6A07DE44A67C570B93B6178E61502BC6" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_6A07DE44A67C570B93B6178E61502BC6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary_F70764970EFA5EAA81F971F81E4A87C6" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary_F70764970EFA5EAA81F971F81E4A87C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary_338FAEA3B5AB5AE99CFD8C6ABBF8E4C0" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary_338FAEA3B5AB5AE99CFD8C6ABBF8E4C0" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_UnrecordedUnconditionalPurchaseObligationBalanceOnSixthAnniversary" xlink:label="loc_lbtya_UnrecordedUnconditionalPurchaseObligationBalanceOnSixthAnniversary_CCD6AF3C8424590B838613AE99993927" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:to="loc_lbtya_UnrecordedUnconditionalPurchaseObligationBalanceOnSixthAnniversary_CCD6AF3C8424590B838613AE99993927" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_UnrecordedUnconditionalPurchaseObligationBalanceOnSixthAnniversaryAndThereafter" xlink:label="loc_lbtya_UnrecordedUnconditionalPurchaseObligationBalanceOnSixthAnniversaryAndThereafter_3E27059B8EA95DBEAB289709F9BDD880" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_C3B3197098E85248A1CD12594F2D83C0" xlink:to="loc_lbtya_UnrecordedUnconditionalPurchaseObligationBalanceOnSixthAnniversaryAndThereafter_3E27059B8EA95DBEAB289709F9BDD880" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedBalanceSheetsUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_066608da-f041-4af6-3da0-95354b640e11" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:to="loc_us-gaap_Liabilities_066608da-f041-4af6-3da0-95354b640e11" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_066608da-f041-4af6-3da0-95354b640e11" xlink:to="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_c2c48170-d0ff-2c37-effc-ff5f53e30dcb" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_AccountsPayableCurrent_c2c48170-d0ff-2c37-effc-ff5f53e30dcb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_1beea529-7ff9-f264-77a3-b82530469f83" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_1beea529-7ff9-f264-77a3-b82530469f83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtCurrent" xlink:label="loc_us-gaap_DebtCurrent_8f5a3111-d5cb-a384-b222-de3b1f0ebb53" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_DebtCurrent_8f5a3111-d5cb-a384-b222-de3b1f0ebb53" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_d9354686-0832-bbe3-9389-140489c487e8" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_d9354686-0832-bbe3-9389-140489c487e8" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_AccruedCapitalExpendituresCurrent" xlink:label="loc_lbtya_AccruedCapitalExpendituresCurrent_1c7d9b8e-80f9-5444-f24c-ab819668e814" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_lbtya_AccruedCapitalExpendituresCurrent_1c7d9b8e-80f9-5444-f24c-ab819668e814" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_008489b9-d348-7423-9850-c3ac37bce631" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_008489b9-d348-7423-9850-c3ac37bce631" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_872beecf-7614-c912-a2d2-2937513b9a4b" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_066608da-f041-4af6-3da0-95354b640e11" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_872beecf-7614-c912-a2d2-2937513b9a4b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_bba08e5f-78e8-6c25-01a4-6720051135cc" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_066608da-f041-4af6-3da0-95354b640e11" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_bba08e5f-78e8-6c25-01a4-6720051135cc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_5eac1705-1cbb-e196-f33e-32795ed746a4" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_066608da-f041-4af6-3da0-95354b640e11" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_5eac1705-1cbb-e196-f33e-32795ed746a4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e0c0480e-e6f5-c4df-ce25-1ffa4a8c827a" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e0c0480e-e6f5-c4df-ce25-1ffa4a8c827a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e0c0480e-e6f5-c4df-ce25-1ffa4a8c827a" xlink:to="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_aefe3f0c-abe4-5b83-9a64-da77d8e253dd" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_CommonStockValue_aefe3f0c-abe4-5b83-9a64-da77d8e253dd" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_6dca832a-861c-478d-b1a0-396533beb40d" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_AdditionalPaidInCapital_6dca832a-861c-478d-b1a0-396533beb40d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_a59bc5ae-63a0-c9bc-32f7-e2bd9f32bd26" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_a59bc5ae-63a0-c9bc-32f7-e2bd9f32bd26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_798442bf-12e1-d944-3fa1-8b797b67482e" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_798442bf-12e1-d944-3fa1-8b797b67482e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_70b30340-b55c-aed7-73f5-36d397294f84" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_TreasuryStockValue_70b30340-b55c-aed7-73f5-36d397294f84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaap_MinorityInterest_a9feabf5-0bf0-3efe-740e-f5e41a4b3194" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e0c0480e-e6f5-c4df-ce25-1ffa4a8c827a" xlink:to="loc_us-gaap_MinorityInterest_a9feabf5-0bf0-3efe-740e-f5e41a4b3194" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_f0c68f4f-7ec1-d447-8ba7-0f2766abbe67" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:to="loc_us-gaap_CommitmentsAndContingencies_f0c68f4f-7ec1-d447-8ba7-0f2766abbe67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_928a1618-af56-709a-989c-a303706b8ca2" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_928a1618-af56-709a-989c-a303706b8ca2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_32f41ea9-05c6-e713-464b-586a571d1c1f" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_32f41ea9-05c6-e713-464b-586a571d1c1f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeAssetsCurrent" xlink:label="loc_us-gaap_DerivativeAssetsCurrent_9f677d56-9250-6898-5be4-72422ced3be0" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_DerivativeAssetsCurrent_9f677d56-9250-6898-5be4-72422ced3be0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_b69fa2fe-d7f6-024f-39fb-29cad0c95853" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_b69fa2fe-d7f6-024f-39fb-29cad0c95853" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_79aabdc0-b963-1fd1-4e81-8c0801b1ebca" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_OtherAssetsCurrent_79aabdc0-b963-1fd1-4e81-8c0801b1ebca" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_4a9219e5-b11b-1259-8c65-943e95f6dca4" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_4a9219e5-b11b-1259-8c65-943e95f6dca4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermInvestments" xlink:label="loc_us-gaap_LongTermInvestments_82393af8-00cf-c878-caac-887e4fcb1248" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_LongTermInvestments_82393af8-00cf-c878-caac-887e4fcb1248" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_831ad0b9-9dba-3997-20e6-e99a19aa28db" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_Goodwill_831ad0b9-9dba-3997-20e6-e99a19aa28db" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_ddb0d184-2205-2a10-5b0e-faf2ccd717ae" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_ddb0d184-2205-2a10-5b0e-faf2ccd717ae" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_6544a746-9524-1b61-e235-04d48d39f116" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_6544a746-9524-1b61-e235-04d48d39f116" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_f4dbc858-a118-9b67-ebbc-8f08f5d89c9c" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_f4dbc858-a118-9b67-ebbc-8f08f5d89c9c" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedStatementOfEquityUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1_813e62d5-7ea1-1317-5488-dd17c791ab05" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e0c0480e-e6f5-c4df-ce25-1ffa4a8c827a" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1_813e62d5-7ea1-1317-5488-dd17c791ab05" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e0c0480e-e6f5-c4df-ce25-1ffa4a8c827a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_1c7fa17e-af31-a076-13a1-b5dd9c2d8ddc" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1_813e62d5-7ea1-1317-5488-dd17c791ab05" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_1c7fa17e-af31-a076-13a1-b5dd9c2d8ddc" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_279d4c3d-f9a8-39dc-2da8-b290fd028b73" xlink:type="locator" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_IncomeTaxesPaidContinuingOperations" xlink:label="loc_lbtya_IncomeTaxesPaidContinuingOperations_ec1de862-afd6-a369-7966-ab81960cf222" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxesPaidNet_279d4c3d-f9a8-39dc-2da8-b290fd028b73" xlink:to="loc_lbtya_IncomeTaxesPaidContinuingOperations_ec1de862-afd6-a369-7966-ab81960cf222" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_IncomeTaxesPaidDiscontinuedOperations" xlink:label="loc_lbtya_IncomeTaxesPaidDiscontinuedOperations_f0746c79-fd50-7a5f-7740-ab8196883815" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxesPaidNet_279d4c3d-f9a8-39dc-2da8-b290fd028b73" xlink:to="loc_lbtya_IncomeTaxesPaidDiscontinuedOperations_f0746c79-fd50-7a5f-7740-ab8196883815" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_e0089888-8677-d95e-95e6-00fe630f2dcb" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_e0089888-8677-d95e-95e6-00fe630f2dcb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations_1d575f0e-ae1e-348e-0f56-f29b6ccb1025" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_e0089888-8677-d95e-95e6-00fe630f2dcb" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations_1d575f0e-ae1e-348e-0f56-f29b6ccb1025" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsDiscontinuedOperations" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsDiscontinuedOperations_00291341-b603-b6a8-85a9-e8ced3d8f4bd" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_e0089888-8677-d95e-95e6-00fe630f2dcb" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsDiscontinuedOperations_00291341-b603-b6a8-85a9-e8ced3d8f4bd" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_60ab1096-bf53-5d61-76bd-431fe857fc03" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_60ab1096-bf53-5d61-76bd-431fe857fc03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_308bba6f-df31-241b-22dc-9355481dabc2" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_308bba6f-df31-241b-22dc-9355481dabc2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_d4a92697-d008-996b-823a-bd9a56a04b3a" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_d4a92697-d008-996b-823a-bd9a56a04b3a" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_PaymentOfDeferredFinancingCostsDebtPremiumsAndExchangeOfferConsideration" xlink:label="loc_lbtya_PaymentOfDeferredFinancingCostsDebtPremiumsAndExchangeOfferConsideration_d6d08ecb-03a1-13d3-5dce-ab8193bf1fcb" xlink:type="locator" />
    <link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_lbtya_PaymentOfDeferredFinancingCostsDebtPremiumsAndExchangeOfferConsideration_d6d08ecb-03a1-13d3-5dce-ab8193bf1fcb" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_PaymentsofValueAddedTaxesJointVenture" xlink:label="loc_lbtya_PaymentsofValueAddedTaxesJointVenture_3c491a31-ca1a-224b-b4ea-ab8195721ce1" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_lbtya_PaymentsofValueAddedTaxesJointVenture_3c491a31-ca1a-224b-b4ea-ab8195721ce1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForProceedsFromHedgeFinancingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromHedgeFinancingActivities_a25d4589-b527-c718-1c96-b473babbe4d5" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_us-gaap_PaymentsForProceedsFromHedgeFinancingActivities_a25d4589-b527-c718-1c96-b473babbe4d5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_38e7f3e2-9d1a-8772-e4aa-fb2cb7d8adc0" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_38e7f3e2-9d1a-8772-e4aa-fb2cb7d8adc0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfOtherEquity" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfOtherEquity_7c11406c-a6fa-923a-e89c-9243f2f8d1b8" xlink:type="locator" />
    <link:calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_d2bc8fb4-8ebc-76d6-9ba9-10685e994440" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfOtherEquity_7c11406c-a6fa-923a-e89c-9243f2f8d1b8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" xlink:label="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_0293a5ac-226d-5172-9d77-f89f36a9a621" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_0293a5ac-226d-5172-9d77-f89f36a9a621" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_ShareBasedCompensation_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_97b88949-d4fc-dff4-be7f-d39018557f4e" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_DepreciationAndAmortization_97b88949-d4fc-dff4-be7f-d39018557f4e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringSettlementAndImpairmentProvisions" xlink:label="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9b65d3-60fb-3585-8216-e96da77715d5" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9b65d3-60fb-3585-8216-e96da77715d5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_1b3da715-8d28-869a-fc9e-cb75bcd8d652" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_1b3da715-8d28-869a-fc9e-cb75bcd8d652" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_21e1e17d-8548-ebf7-18c6-2b0715714390" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_21e1e17d-8548-ebf7-18c6-2b0715714390" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_743ecb1a-adc1-2b63-ff24-350f33c715bd" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_743ecb1a-adc1-2b63-ff24-350f33c715bd" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_RealizedandUnrealizedLossesGainsduetoChangesinFairValuesofCertainInvestmentsandDebt" xlink:label="loc_lbtya_RealizedandUnrealizedLossesGainsduetoChangesinFairValuesofCertainInvestmentsandDebt_127fee39-0dcd-9c18-6ef2-ab81963aa958" xlink:type="locator" />
    <link:calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_lbtya_RealizedandUnrealizedLossesGainsduetoChangesinFairValuesofCertainInvestmentsandDebt_127fee39-0dcd-9c18-6ef2-ab81963aa958" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnRestructuringOfDebt" xlink:label="loc_us-gaap_GainsLossesOnRestructuringOfDebt_3de0c66d-8f0f-d372-c8b1-44cc64cd2f5e" xlink:type="locator" />
    <link:calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_GainsLossesOnRestructuringOfDebt_3de0c66d-8f0f-d372-c8b1-44cc64cd2f5e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="locator" />
    <link:calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="locator" />
    <link:calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapital" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapital_0d84972d-26a1-e50e-67cb-502f125cb65c" xlink:type="locator" />
    <link:calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapital_0d84972d-26a1-e50e-67cb-502f125cb65c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:type="locator" />
    <link:calculationArc order="12" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentDividendsOrDistributions" xlink:label="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_fc492244-7d5a-7cd0-89f2-ebfd74c617eb" xlink:type="locator" />
    <link:calculationArc order="13" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_fd33978d-50b8-db74-6695-8c6dbaac3547" xlink:to="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_fc492244-7d5a-7cd0-89f2-ebfd74c617eb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_1adf41ec-5a2c-64b7-c6ee-ac5a454db672" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_1adf41ec-5a2c-64b7-c6ee-ac5a454db672" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_8cec699e-eb8f-7a25-49e6-e52d81fe4f5f" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_8cec699e-eb8f-7a25-49e6-e52d81fe4f5f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_b6fa430c-a850-432c-777a-eaa4171b8a89" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_b6fa430c-a850-432c-777a-eaa4171b8a89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_80abba07-181c-6ed2-349d-9d7dfc078eab" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_80abba07-181c-6ed2-349d-9d7dfc078eab" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_36bbede4-6aaf-abc3-bc7f-42be029fe258" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_36bbede4-6aaf-abc3-bc7f-42be029fe258" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromCollectionOfAdvanceToAffiliate" xlink:label="loc_us-gaap_ProceedsFromCollectionOfAdvanceToAffiliate_2c6d9eb0-9eed-6052-86b7-6a77b04f6040" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:to="loc_us-gaap_ProceedsFromCollectionOfAdvanceToAffiliate_2c6d9eb0-9eed-6052-86b7-6a77b04f6040" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_54e087e7-dea1-4188-710c-f95dcb130e6e" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_54e087e7-dea1-4188-710c-f95dcb130e6e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_174c69cb-dbdb-715b-90aa-41fc0a26f1d6" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_11e67a5b-b991-9b9e-ce71-4134920b3689" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_174c69cb-dbdb-715b-90aa-41fc0a26f1d6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:label="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_fd904acb-5ee8-2a8a-63a4-f34fbb4dd5c0" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:to="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_fd904acb-5ee8-2a8a-63a4-f34fbb4dd5c0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaap_InterestPaid_08fbb7eb-96c6-ac71-973a-446a0ec348a5" xlink:type="locator" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_InterestPaidContinuingOperations" xlink:label="loc_lbtya_InterestPaidContinuingOperations_188f7859-1e04-df65-dc89-ab819712c192" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestPaid_08fbb7eb-96c6-ac71-973a-446a0ec348a5" xlink:to="loc_lbtya_InterestPaidContinuingOperations_188f7859-1e04-df65-dc89-ab819712c192" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPaidDiscontinuedOperations" xlink:label="loc_us-gaap_InterestPaidDiscontinuedOperations_5a6cf49c-f0d5-316b-3de9-06199ab0fdea" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestPaid_08fbb7eb-96c6-ac71-973a-446a0ec348a5" xlink:to="loc_us-gaap_InterestPaidDiscontinuedOperations_5a6cf49c-f0d5-316b-3de9-06199ab0fdea" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedStatementsOfCashFlowsUnauditedCalc2" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_1F0BED569D4E6DB6EEE7D201BF313C82_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInContinuingOperations_1F0BED569D4E6DB6EEE7D201BF313C82_8d63ce58-ab64-b6a6-2be8-4b6fa82b32b7" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_1F0BED569D4E6DB6EEE7D201BF313C82_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInContinuingOperations_1F0BED569D4E6DB6EEE7D201BF313C82_8d63ce58-ab64-b6a6-2be8-4b6fa82b32b7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInDiscontinuedOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_1F0BED569D4E6DB6EEE7D201BF313C82_bf9d0fa5-9ae5-69e9-563a-3dcf2056141c" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_1F0BED569D4E6DB6EEE7D201BF313C82_9743d583-dfae-6ae9-f133-a1e331df792c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_1F0BED569D4E6DB6EEE7D201BF313C82_bf9d0fa5-9ae5-69e9-563a-3dcf2056141c" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedStatementsOfCashFlowsUnauditedParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1ce4b89e-fa52-7101-5bea-622168a4559a" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_32f41ea9-05c6-e713-464b-586a571d1c1f" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1ce4b89e-fa52-7101-5bea-622168a4559a" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_32f41ea9-05c6-e713-464b-586a571d1c1f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashCurrent" xlink:label="loc_us-gaap_RestrictedCashCurrent_81b308b1-c4ff-480c-3942-2317dfd5262a" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1ce4b89e-fa52-7101-5bea-622168a4559a" xlink:to="loc_us-gaap_RestrictedCashCurrent_81b308b1-c4ff-480c-3942-2317dfd5262a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashNoncurrent" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_0c57e6e5-1856-148a-c665-8f26e53c3400" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1ce4b89e-fa52-7101-5bea-622168a4559a" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_0c57e6e5-1856-148a-c665-8f26e53c3400" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedStatementsOfComprehensiveEarnignsLossUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_cf605d39-9067-2f07-a6b5-7dfa6481009e" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_0e67d263-6e0f-cbd4-f553-6c8cebeb68d8" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_cf605d39-9067-2f07-a6b5-7dfa6481009e" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_0e67d263-6e0f-cbd4-f553-6c8cebeb68d8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e68ce304-18e4-96c0-3260-363a872863db" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_0e67d263-6e0f-cbd4-f553-6c8cebeb68d8" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e68ce304-18e4-96c0-3260-363a872863db" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_8aa68cfb-2df7-9a23-d1ed-4fe33385b4a2" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_0e67d263-6e0f-cbd4-f553-6c8cebeb68d8" xlink:to="loc_us-gaap_ProfitLoss_8aa68cfb-2df7-9a23-d1ed-4fe33385b4a2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_ff106bf5-082b-8f58-cc36-c7f91866b7d3" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_cf605d39-9067-2f07-a6b5-7dfa6481009e" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_ff106bf5-082b-8f58-cc36-c7f91866b7d3" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/CondensedConsolidatedStatementsOfOperationsUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_f5ae002e-8316-7bc0-1b41-6cd171b53db3" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_f5ae002e-8316-7bc0-1b41-6cd171b53db3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_8aa68cfb-2df7-9a23-d1ed-4fe33385b4a2" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:to="loc_us-gaap_ProfitLoss_8aa68cfb-2df7-9a23-d1ed-4fe33385b4a2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_8aa68cfb-2df7-9a23-d1ed-4fe33385b4a2" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4d8b6d19-6a54-06aa-2077-c10380bd20d1" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4d8b6d19-6a54-06aa-2077-c10380bd20d1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4d8b6d19-6a54-06aa-2077-c10380bd20d1" xlink:to="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_4562fc03-cbaf-a89b-d454-b9d16c5936b8" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_4562fc03-cbaf-a89b-d454-b9d16c5936b8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_8823ccfd-55af-348e-39a2-91433072d2c9" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_us-gaap_CostsAndExpenses_8823ccfd-55af-348e-39a2-91433072d2c9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_693c47dd-e6fa-9c85-6a65-7baa26f76b5e" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_8823ccfd-55af-348e-39a2-91433072d2c9" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_693c47dd-e6fa-9c85-6a65-7baa26f76b5e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_97b88949-d4fc-dff4-be7f-d39018557f4e" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_8823ccfd-55af-348e-39a2-91433072d2c9" xlink:to="loc_us-gaap_DepreciationAndAmortization_97b88949-d4fc-dff4-be7f-d39018557f4e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringSettlementAndImpairmentProvisions" xlink:label="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9b65d3-60fb-3585-8216-e96da77715d5" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_8823ccfd-55af-348e-39a2-91433072d2c9" xlink:to="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9b65d3-60fb-3585-8216-e96da77715d5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_93000e3a-91b4-7752-a2af-ee913adc84f8" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_8823ccfd-55af-348e-39a2-91433072d2c9" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_93000e3a-91b4-7752-a2af-ee913adc84f8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_1c65a201-fd8e-32d7-dad9-c6d1d5719594" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_8823ccfd-55af-348e-39a2-91433072d2c9" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_1c65a201-fd8e-32d7-dad9-c6d1d5719594" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4d8b6d19-6a54-06aa-2077-c10380bd20d1" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_21e1e17d-8548-ebf7-18c6-2b0715714390" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_21e1e17d-8548-ebf7-18c6-2b0715714390" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_743ecb1a-adc1-2b63-ff24-350f33c715bd" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_743ecb1a-adc1-2b63-ff24-350f33c715bd" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnRestructuringOfDebt" xlink:label="loc_us-gaap_GainsLossesOnRestructuringOfDebt_3de0c66d-8f0f-d372-c8b1-44cc64cd2f5e" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:to="loc_us-gaap_GainsLossesOnRestructuringOfDebt_3de0c66d-8f0f-d372-c8b1-44cc64cd2f5e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_41e96f8d-e499-8de8-69a8-27f1c7d4df6e" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_41e96f8d-e499-8de8-69a8-27f1c7d4df6e" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_RealizedAndUnrealizedGainsLossesDueToChangesInFairValuesofCertainInvestmentsandDebtNet" xlink:label="loc_lbtya_RealizedAndUnrealizedGainsLossesDueToChangesInFairValuesofCertainInvestmentsandDebtNet_ceea5b19-b680-41e5-50b5-ab8193dd72cb" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:to="loc_lbtya_RealizedAndUnrealizedGainsLossesDueToChangesInFairValuesofCertainInvestmentsandDebtNet_ceea5b19-b680-41e5-50b5-ab8193dd72cb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_a56b34b7-57ab-a07c-7f03-8366849a14f0" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:to="loc_us-gaap_InterestExpense_a56b34b7-57ab-a07c-7f03-8366849a14f0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_c5398800-6e68-ed86-a47c-16106e0730c2" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_8aa68cfb-2df7-9a23-d1ed-4fe33385b4a2" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_5c5bf3be-1580-152e-471f-52ad456de926" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_5c5bf3be-1580-152e-471f-52ad456de926" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax" xlink:label="loc_us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_987fc84f-6b94-be61-9678-0e6a2e0924f3" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_9b451285-adc3-6c37-15b7-4fd2a15bd781" xlink:to="loc_us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_987fc84f-6b94-be61-9678-0e6a2e0924f3" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligations" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsCapitalLeaseObligationsScheduleDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_683BCF4E3D0A56F39C05F475DFD3A46D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_683BCF4E3D0A56F39C05F475DFD3A46D" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_9649CD901B375C509BAFB576F3102071" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear_9649CD901B375C509BAFB576F3102071" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_54C955DAAC39592B80D55C1BE655B1A4" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_54C955DAAC39592B80D55C1BE655B1A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_427B42FCDBFA5567968E5F24758BBEF8" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_427B42FCDBFA5567968E5F24758BBEF8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_A6D3E1F63F0A554C9CB6BAED29AA16F7" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_A6D3E1F63F0A554C9CB6BAED29AA16F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_12B6A48547475A608855CB12D44AEE40" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_12B6A48547475A608855CB12D44AEE40" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_CapitalLeasesFutureMinimumPaymentsDueInSixYears" xlink:label="loc_lbtya_CapitalLeasesFutureMinimumPaymentsDueInSixYears_DB82AFD9661A501AAF51BABDD420EA87" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:to="loc_lbtya_CapitalLeasesFutureMinimumPaymentsDueInSixYears_DB82AFD9661A501AAF51BABDD420EA87" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_CapitalLeaseFutureMinimumPaymentsDueAfterYearSix" xlink:label="loc_lbtya_CapitalLeaseFutureMinimumPaymentsDueAfterYearSix_E71418A5AD5B5135804FBE3BBC5E6F15" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_8950F2814FC350F188382093FE18B61A" xlink:to="loc_lbtya_CapitalLeaseFutureMinimumPaymentsDueAfterYearSix_E71418A5AD5B5135804FBE3BBC5E6F15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_98971E8990FD57338991579452F33C02" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_683BCF4E3D0A56F39C05F475DFD3A46D" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_98971E8990FD57338991579452F33C02" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsCapitalLeaseObligationsScheduleDetailsCalc2" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_C4876FB1FD11EF4A7733AB81EC622F63_683BCF4E3D0A56F39C05F475DFD3A46D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsCurrent_C4876FB1FD11EF4A7733AB81EC622F63_A07A1780C5105A2F971B65003589A064" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_C4876FB1FD11EF4A7733AB81EC622F63_683BCF4E3D0A56F39C05F475DFD3A46D" xlink:to="loc_us-gaap_CapitalLeaseObligationsCurrent_C4876FB1FD11EF4A7733AB81EC622F63_A07A1780C5105A2F971B65003589A064" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligationsNoncurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsNoncurrent_C4876FB1FD11EF4A7733AB81EC622F63_369623DA7B98596991B10247813F3625" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_C4876FB1FD11EF4A7733AB81EC622F63_683BCF4E3D0A56F39C05F475DFD3A46D" xlink:to="loc_us-gaap_CapitalLeaseObligationsNoncurrent_C4876FB1FD11EF4A7733AB81EC622F63_369623DA7B98596991B10247813F3625" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsComponentsOfDebtAndCapitalLeaseObligationsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_2e350557-c994-a98b-28bd-c6c07a0e1516" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_265f3d44-db40-2656-dee4-40c75e9bde2a" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_2e350557-c994-a98b-28bd-c6c07a0e1516" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_265f3d44-db40-2656-dee4-40c75e9bde2a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_872beecf-7614-c912-a2d2-2937513b9a4b" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_2e350557-c994-a98b-28bd-c6c07a0e1516" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_872beecf-7614-c912-a2d2-2937513b9a4b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_80dca0ba-44dc-8565-fb9b-c2edfc8c357d" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_88b8f1df-ff6f-5cd6-e45f-5878f70c11d5" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_80dca0ba-44dc-8565-fb9b-c2edfc8c357d" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_88b8f1df-ff6f-5cd6-e45f-5878f70c11d5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_2741d981-c21a-e533-a8bb-deb13ff09cbf" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_80dca0ba-44dc-8565-fb9b-c2edfc8c357d" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_2741d981-c21a-e533-a8bb-deb13ff09cbf" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsComponentsOfDebtAndCapitalLeaseObligationsDetailsCalc2" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5DDECAB63E82987D2C44C15958FFB978_2e350557-c994-a98b-28bd-c6c07a0e1516" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_5DDECAB63E82987D2C44C15958FFB978_80dca0ba-44dc-8565-fb9b-c2edfc8c357d" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5DDECAB63E82987D2C44C15958FFB978_2e350557-c994-a98b-28bd-c6c07a0e1516" xlink:to="loc_us-gaap_LongTermDebt_5DDECAB63E82987D2C44C15958FFB978_80dca0ba-44dc-8565-fb9b-c2edfc8c357d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligations" xlink:label="loc_us-gaap_CapitalLeaseObligations_5DDECAB63E82987D2C44C15958FFB978_275523fc-fc8d-62f8-516d-aca3793246f2" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5DDECAB63E82987D2C44C15958FFB978_2e350557-c994-a98b-28bd-c6c07a0e1516" xlink:to="loc_us-gaap_CapitalLeaseObligations_5DDECAB63E82987D2C44C15958FFB978_275523fc-fc8d-62f8-516d-aca3793246f2" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsFinancingTransactionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsMaturitiesOfDebtDetails" xlink:type="extended">
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_LongtermDebtGrossContractualMaturities" xlink:label="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_1D7B9C21F44454B19E7964D0E22AFD84" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_1D7B9C21F44454B19E7964D0E22AFD84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_25E7D5E5DE9D53D3900B6BCD4E6589F9" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_25E7D5E5DE9D53D3900B6BCD4E6589F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_81A7C73795DD5E0DB7B99DB7C7238E14" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_81A7C73795DD5E0DB7B99DB7C7238E14" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_2F2E652697BD56FD9555BECCF28D69C8" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_2F2E652697BD56FD9555BECCF28D69C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_9DBC93103F74557FBB67B58B60EFD6D6" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_9DBC93103F74557FBB67B58B60EFD6D6" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearSix" xlink:label="loc_lbtya_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearSix_EACE80F3BEB65BEA90EA287592728AC7" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:to="loc_lbtya_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearSix_EACE80F3BEB65BEA90EA287592728AC7" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearSix" xlink:label="loc_lbtya_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearSix_6F2A9D8C25B25C0290D66AEC0447CAFC" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtGrossContractualMaturities_4559D673D8A15C1987A9ECDC5A7964B8" xlink:to="loc_lbtya_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearSix_6F2A9D8C25B25C0290D66AEC0447CAFC" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_LongtermDebtContractualMaturities" xlink:label="loc_lbtya_LongtermDebtContractualMaturities_4691D429FD955ABFB2F2364BB1A28022" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_7DC5F506D96052F1A807256E2BB8CA71" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtContractualMaturities_4691D429FD955ABFB2F2364BB1A28022" xlink:to="loc_us-gaap_LongTermDebtCurrent_7DC5F506D96052F1A807256E2BB8CA71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_8A83D1141E555344A247CE6A0B5C6058" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtContractualMaturities_4691D429FD955ABFB2F2364BB1A28022" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_8A83D1141E555344A247CE6A0B5C6058" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsMaturitiesOfDebtDetailsCalc2" xlink:type="extended">
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_LongtermDebtContractualMaturities" xlink:label="loc_lbtya_LongtermDebtContractualMaturities_27101D1A85787BB7597BAB81ED04EF6A_4691D429FD955ABFB2F2364BB1A28022" xlink:type="locator" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_LongtermDebtGrossContractualMaturities" xlink:label="loc_lbtya_LongtermDebtGrossContractualMaturities_27101D1A85787BB7597BAB81ED04EF6A_4559D673D8A15C1987A9ECDC5A7964B8" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtContractualMaturities_27101D1A85787BB7597BAB81ED04EF6A_4691D429FD955ABFB2F2364BB1A28022" xlink:to="loc_lbtya_LongtermDebtGrossContractualMaturities_27101D1A85787BB7597BAB81ED04EF6A_4559D673D8A15C1987A9ECDC5A7964B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_27101D1A85787BB7597BAB81ED04EF6A_8E821560104A557F861D7E4E38A46D13" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_LongtermDebtContractualMaturities_27101D1A85787BB7597BAB81ED04EF6A_4691D429FD955ABFB2F2364BB1A28022" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_27101D1A85787BB7597BAB81ED04EF6A_8E821560104A557F861D7E4E38A46D13" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DebtAndCapitalLeaseObligationsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstruments" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsBasisSwapsInterestRateCapsAndCollarsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsCrossCurrencyDerivativeContractsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsFairValuesOfDerivativeAssetsAndLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="loc_us-gaap_DerivativeAssets_082aa8c2-a051-1bb7-d441-a6d93b3f45f4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeAssetsCurrent" xlink:label="loc_us-gaap_DerivativeAssetsCurrent_9f677d56-9250-6898-5be4-72422ced3be0" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_082aa8c2-a051-1bb7-d441-a6d93b3f45f4" xlink:to="loc_us-gaap_DerivativeAssetsCurrent_9f677d56-9250-6898-5be4-72422ced3be0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeAssetsNoncurrent" xlink:label="loc_us-gaap_DerivativeAssetsNoncurrent_1b627296-6ceb-171f-5c4f-23b7c7421d3f" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_082aa8c2-a051-1bb7-d441-a6d93b3f45f4" xlink:to="loc_us-gaap_DerivativeAssetsNoncurrent_1b627296-6ceb-171f-5c4f-23b7c7421d3f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_us-gaap_DerivativeLiabilities_7e8e10f8-8ddc-2b6a-eea7-ea4d306368a1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeLiabilitiesCurrent" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_690493cd-e4bf-5e73-1767-85beb84cea8f" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilities_7e8e10f8-8ddc-2b6a-eea7-ea4d306368a1" xlink:to="loc_us-gaap_DerivativeLiabilitiesCurrent_690493cd-e4bf-5e73-1767-85beb84cea8f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_7537acaa-8649-0e59-f3d0-d9fe26fabbbc" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilities_7e8e10f8-8ddc-2b6a-eea7-ea4d306368a1" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_7537acaa-8649-0e59-f3d0-d9fe26fabbbc" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsForeignCurrencyForwardsAndOptionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsImpactOfDerivativeInstrumentsOnBorrowingCostsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsInterestRateSwapContractsAndOptionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsNetCashReceivedPaidRelatedToDerivativesScheduleDetails" xlink:type="extended">
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_PaymentsForProceedsFromDerivativesContinuingOperations" xlink:label="loc_lbtya_PaymentsForProceedsFromDerivativesContinuingOperations_7074EC31C89655CE8D62E4E16ABFC49C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForProceedsFromDerivativeInstrumentFinancingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromDerivativeInstrumentFinancingActivities_031757908AA55A2EBCCDD07EBEEA7242" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_PaymentsForProceedsFromDerivativesContinuingOperations_7074EC31C89655CE8D62E4E16ABFC49C" xlink:to="loc_us-gaap_PaymentsForProceedsFromDerivativeInstrumentFinancingActivities_031757908AA55A2EBCCDD07EBEEA7242" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_PaymentsForProceedsFromDerivativeInstrumentOperatingActivities" xlink:label="loc_lbtya_PaymentsForProceedsFromDerivativeInstrumentOperatingActivities_113A89129A7D5B5896B423EACBD5A049" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_PaymentsForProceedsFromDerivativesContinuingOperations_7074EC31C89655CE8D62E4E16ABFC49C" xlink:to="loc_lbtya_PaymentsForProceedsFromDerivativeInstrumentOperatingActivities_113A89129A7D5B5896B423EACBD5A049" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForProceedsFromDerivativeInstrumentInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromDerivativeInstrumentInvestingActivities_0884992E94F151A6BC1D1DBBC426DE09" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_PaymentsForProceedsFromDerivativesContinuingOperations_7074EC31C89655CE8D62E4E16ABFC49C" xlink:to="loc_us-gaap_PaymentsForProceedsFromDerivativeInstrumentInvestingActivities_0884992E94F151A6BC1D1DBBC426DE09" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsRealizedAndUnrealizedGainsLossesOnDerivativesScheduleAndFootnotesDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DerivativeInstrumentsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/EarningsOrLossPerShare" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/EarningsOrLossPerShareNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/EarningsOrLossPerShareSchedulesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_94f31e74-10af-23c9-6750-e629ed0cc4ed" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_94f31e74-10af-23c9-6750-e629ed0cc4ed" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_98ad2198-806f-6053-5326-b79be5cbb9ef" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_b75c6c71-aebe-7dff-540e-3742b447fc67" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_94f31e74-10af-23c9-6750-e629ed0cc4ed" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_b75c6c71-aebe-7dff-540e-3742b447fc67" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/EarningsOrLossPerShareTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/Equity" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/EquityDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/FairValueMeasurements" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/FairValueMeasurementsAssetsAndLiabilitiesReconciliationScheduleAndFootnoteDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/FairValueMeasurementsSummaryOfAssetsAndLiabilitiesAtFairValueScheduleDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_F6032967F79A527D8CAB0FD3587B9459" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure_CF920660F90455489507F6E2F10705E3" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_F6032967F79A527D8CAB0FD3587B9459" xlink:to="loc_us-gaap_InvestmentsFairValueDisclosure_CF920660F90455489507F6E2F10705E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="loc_us-gaap_DerivativeAssets_5BDC6E97E1C653279628C63306830381" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_F6032967F79A527D8CAB0FD3587B9459" xlink:to="loc_us-gaap_DerivativeAssets_5BDC6E97E1C653279628C63306830381" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosure" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_8D73F350F44653A695DE3F89F38979A8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_us-gaap_DerivativeLiabilities_B7F6AFDF57B954E5B3928E1DE3D0C99D" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_8D73F350F44653A695DE3F89F38979A8" xlink:to="loc_us-gaap_DerivativeLiabilities_B7F6AFDF57B954E5B3928E1DE3D0C99D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_FCF98144A2BA5C9885D1B5ED56BF04A8" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_8D73F350F44653A695DE3F89F38979A8" xlink:to="loc_us-gaap_LongTermDebtFairValue_FCF98144A2BA5C9885D1B5ED56BF04A8" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/FairValueMeasurementsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/IncomeTaxes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/IncomeTaxesReconciliationOfFederalToEffectiveTaxesScheduleDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_46fd3e47-b379-3d5b-dad7-1fdc5e88b67f" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_46fd3e47-b379-3d5b-dad7-1fdc5e88b67f" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinDeferredTaxAssetsValuationAllowanceAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinDeferredTaxAssetsValuationAllowanceAmount_e61eff25-79e0-b263-b138-ab8196308eff" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinDeferredTaxAssetsValuationAllowanceAmount_e61eff25-79e0-b263-b138-ab8196308eff" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinDeferredTaxAssetsValuationAllowanceAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinDeferredTaxAssetsValuationAllowanceAmount_ee841883-475b-1d59-8ee3-ab8193df5dcb" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinDeferredTaxAssetsValuationAllowanceAmount_ee841883-475b-1d59-8ee3-ab8193df5dcb" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinForeignIncomeTaxRateDifferentialAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinForeignIncomeTaxRateDifferentialAmount_1c0b809a-f947-2044-ca00-ab81964136c6" xlink:type="locator" />
    <link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinForeignIncomeTaxRateDifferentialAmount_1c0b809a-f947-2044-ca00-ab81964136c6" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinNondeductibleorNonTaxableInterestandOtherExpensesAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinNondeductibleorNonTaxableInterestandOtherExpensesAmount_4a9059fc-7170-8c2a-64e7-ab8193dc704c" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinNondeductibleorNonTaxableInterestandOtherExpensesAmount_4a9059fc-7170-8c2a-64e7-ab8193dc704c" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinNondeductibleorNonTaxableInterestandOtherExpensesAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinNondeductibleorNonTaxableInterestandOtherExpensesAmount_f18db206-fe0d-5b16-b972-ab8193c8ff79" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinNondeductibleorNonTaxableInterestandOtherExpensesAmount_f18db206-fe0d-5b16-b972-ab8193c8ff79" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinNonDeductibleorNonTaxableForeignCurrencyExchangeResultsAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinNonDeductibleorNonTaxableForeignCurrencyExchangeResultsAmount_f66223e6-1c0b-c705-6de8-ab819737723d" xlink:type="locator" />
    <link:calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinNonDeductibleorNonTaxableForeignCurrencyExchangeResultsAmount_f66223e6-1c0b-c705-6de8-ab819737723d" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinNonDeductibleorNonTaxableForeignCurrencyExchangeResultsAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinNonDeductibleorNonTaxableForeignCurrencyExchangeResultsAmount_9ff8cefe-37ce-559f-81e4-ab8193f69c43" xlink:type="locator" />
    <link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinNonDeductibleorNonTaxableForeignCurrencyExchangeResultsAmount_9ff8cefe-37ce-559f-81e4-ab8193f69c43" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinBasisandOtherDifferencesintheTreatmentofItemsAssociatedwithInvestmentsinSubsidiariesandAffiliatesAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinBasisandOtherDifferencesintheTreatmentofItemsAssociatedwithInvestmentsinSubsidiariesandAffiliatesAmount_34a4a5ee-47f3-6e3f-68ec-ab81967fbc40" xlink:type="locator" />
    <link:calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationDecreaseinBasisandOtherDifferencesintheTreatmentofItemsAssociatedwithInvestmentsinSubsidiariesandAffiliatesAmount_34a4a5ee-47f3-6e3f-68ec-ab81967fbc40" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinBasisandOtherDifferencesintheTreatmentofItemsAssociatedwithInvestmentsinSubsidiariesandAffiliatesAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinBasisandOtherDifferencesintheTreatmentofItemsAssociatedwithInvestmentsinSubsidiariesandAffiliatesAmount_8b8d0ddd-2bab-301e-5b8d-ab819593bcf6" xlink:type="locator" />
    <link:calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinBasisandOtherDifferencesintheTreatmentofItemsAssociatedwithInvestmentsinSubsidiariesandAffiliatesAmount_8b8d0ddd-2bab-301e-5b8d-ab819593bcf6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherReconcilingItems" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherReconcilingItems_afc80aa1-52ab-07a3-d2c1-b41b211f6757" xlink:type="locator" />
    <link:calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherReconcilingItems_afc80aa1-52ab-07a3-d2c1-b41b211f6757" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsAmount_6AAF485D98A5A13D5991F242F1FC222E" xlink:type="locator" />
    <link:calculationArc order="12" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017TransitionTaxonAccumulatedForeignEarningsAmount_6AAF485D98A5A13D5991F242F1FC222E" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinForeignIncomeTaxRateDifferentialAmount" xlink:label="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinForeignIncomeTaxRateDifferentialAmount_cbac4bef-6105-a177-33ac-ab819727c523" xlink:type="locator" />
    <link:calculationArc order="13" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_EffectiveIncomeTaxRateReconciliationIncreaseinForeignIncomeTaxRateDifferentialAmount_cbac4bef-6105-a177-33ac-ab819727c523" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_IncomeTaxReconciliationPreviouslyUnrecognizedTaxBenefits" xlink:label="loc_lbtya_IncomeTaxReconciliationPreviouslyUnrecognizedTaxBenefits_f64af944-16e0-5ef4-a7b5-ab819602defa" xlink:type="locator" />
    <link:calculationArc order="14" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_lbtya_IncomeTaxReconciliationPreviouslyUnrecognizedTaxBenefits_f64af944-16e0-5ef4-a7b5-ab819602defa" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/IncomeTaxesTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/Investments" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/InvestmentsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/InvestmentsSchedulesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_b07dd0b5-2d5b-0f23-dac6-48a6c9c4168f" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaap_EquityMethodInvestments_0682cfaa-83e6-dea4-d697-0d84430cc679" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_b07dd0b5-2d5b-0f23-dac6-48a6c9c4168f" xlink:to="loc_us-gaap_EquityMethodInvestments_0682cfaa-83e6-dea4-d697-0d84430cc679" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure_a786ac72-7b36-d915-a262-d97f0559057f" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_b07dd0b5-2d5b-0f23-dac6-48a6c9c4168f" xlink:to="loc_us-gaap_InvestmentsFairValueDisclosure_a786ac72-7b36-d915-a262-d97f0559057f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquitySecuritiesFvNiCost" xlink:label="loc_us-gaap_EquitySecuritiesFvNiCost_e0419e31-3f09-69fd-faa9-2d8e8169b191" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_b07dd0b5-2d5b-0f23-dac6-48a6c9c4168f" xlink:to="loc_us-gaap_EquitySecuritiesFvNiCost_e0419e31-3f09-69fd-faa9-2d8e8169b191" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostMethodInvestments" xlink:label="loc_us-gaap_CostMethodInvestments_b8787f43-c940-40e8-d534-3b6a29ca6f0d" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_b07dd0b5-2d5b-0f23-dac6-48a6c9c4168f" xlink:to="loc_us-gaap_CostMethodInvestments_b8787f43-c940-40e8-d534-3b6a29ca6f0d" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/InvestmentsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/LongLivedAssets" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/LongLivedAssetsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/LongLivedAssetsScheduleOfChangesInCarryingAmountOfGoodwillDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/LongLivedAssetsScheduleOfIntangibleAssetsSubjectToAmortizationNetDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_0EFF88D58C285B95A9A6BF2405A3540F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_66EDA0E07D7656C685EA7C8BF1DC5D22" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_0EFF88D58C285B95A9A6BF2405A3540F" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_66EDA0E07D7656C685EA7C8BF1DC5D22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_DFFC4D6381B958A29B23B060313E6827" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_0EFF88D58C285B95A9A6BF2405A3540F" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_DFFC4D6381B958A29B23B060313E6827" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/LongLivedAssetsScheduleOfPpeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_5C9535EE357B5F4FBB30D4212C519FA0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_A144C8C75DC558D1BE074705A632F9FF" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_5C9535EE357B5F4FBB30D4212C519FA0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_A144C8C75DC558D1BE074705A632F9FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_C44999B7339B581F846BA338929982A9" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_5C9535EE357B5F4FBB30D4212C519FA0" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_C44999B7339B581F846BA338929982A9" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/LongLivedAssetsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/RestructuringLiability" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/RestructuringLiabilityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_f629ab7c-c078-dabf-13b0-6f2405adc07d" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringReserveCurrent" xlink:label="loc_us-gaap_RestructuringReserveCurrent_a96bd12b-bf0d-8f9b-e78d-e34cf5aa9942" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringReserve_f629ab7c-c078-dabf-13b0-6f2405adc07d" xlink:to="loc_us-gaap_RestructuringReserveCurrent_a96bd12b-bf0d-8f9b-e78d-e34cf5aa9942" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringReserveNoncurrent" xlink:label="loc_us-gaap_RestructuringReserveNoncurrent_3273fbe4-f82e-3cf0-8109-1b98acea411f" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringReserve_f629ab7c-c078-dabf-13b0-6f2405adc07d" xlink:to="loc_us-gaap_RestructuringReserveNoncurrent_3273fbe4-f82e-3cf0-8109-1b98acea411f" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/RestructuringLiabilityTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/RevenueRecognitionAndRelatedCosts" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/RevenueRecognitionAndRelatedCostsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReporting" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReportingCapitalExpendituresOfReportableSegmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForCapitalImprovements" xlink:label="loc_us-gaap_PaymentsForCapitalImprovements_64E946C7CE77554A864736A552E55D67" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireOtherProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireOtherProductiveAssets_0811952045455648BDA34DDD2A236904" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForCapitalImprovements_64E946C7CE77554A864736A552E55D67" xlink:to="loc_us-gaap_PaymentsToAcquireOtherProductiveAssets_0811952045455648BDA34DDD2A236904" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromContributionsFromAffiliates" xlink:label="loc_us-gaap_ProceedsFromContributionsFromAffiliates_EDB20822B8AA546BA2E61C61A22176CE" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForCapitalImprovements_64E946C7CE77554A864736A552E55D67" xlink:to="loc_us-gaap_ProceedsFromContributionsFromAffiliates_EDB20822B8AA546BA2E61C61A22176CE" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReportingGeographicSegmentsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReportingNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReportingPerformanceMeasuresScheduleDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReportingReconciliationOfConsolidatedSegmentAdjustedOibdaScheduleDetails" xlink:type="extended">
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes" xlink:label="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_us-gaap_ShareBasedCompensation_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_97b88949-d4fc-dff4-be7f-d39018557f4e" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_us-gaap_DepreciationAndAmortization_97b88949-d4fc-dff4-be7f-d39018557f4e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringSettlementAndImpairmentProvisions" xlink:label="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9b65d3-60fb-3585-8216-e96da77715d5" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9b65d3-60fb-3585-8216-e96da77715d5" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_AdjustedOperatingIncomeLossbeforeDepreciationandAmortization" xlink:label="loc_lbtya_AdjustedOperatingIncomeLossbeforeDepreciationandAmortization_1488429f-c186-5bc2-b5a5-ab8196daaab4" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_lbtya_AdjustedOperatingIncomeLossbeforeDepreciationandAmortization_1488429f-c186-5bc2-b5a5-ab8196daaab4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_a56b34b7-57ab-a07c-7f03-8366849a14f0" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_us-gaap_InterestExpense_a56b34b7-57ab-a07c-7f03-8366849a14f0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_21e1e17d-8548-ebf7-18c6-2b0715714390" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_21e1e17d-8548-ebf7-18c6-2b0715714390" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_743ecb1a-adc1-2b63-ff24-350f33c715bd" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_743ecb1a-adc1-2b63-ff24-350f33c715bd" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnRestructuringOfDebt" xlink:label="loc_us-gaap_GainsLossesOnRestructuringOfDebt_3de0c66d-8f0f-d372-c8b1-44cc64cd2f5e" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_us-gaap_GainsLossesOnRestructuringOfDebt_3de0c66d-8f0f-d372-c8b1-44cc64cd2f5e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_41e96f8d-e499-8de8-69a8-27f1c7d4df6e" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_41e96f8d-e499-8de8-69a8-27f1c7d4df6e" xlink:type="arc" />
    <link:loc xlink:href="lbtya-20180930.xsd#lbtya_RealizedAndUnrealizedGainsLossesDueToChangesInFairValuesofCertainInvestmentsandDebtNet" xlink:label="loc_lbtya_RealizedAndUnrealizedGainsLossesDueToChangesInFairValuesofCertainInvestmentsandDebtNet_ceea5b19-b680-41e5-50b5-ab8193dd72cb" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_lbtya_RealizedAndUnrealizedGainsLossesDueToChangesInFairValuesofCertainInvestmentsandDebtNet_ceea5b19-b680-41e5-50b5-ab8193dd72cb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="locator" />
    <link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lbtya_IncomeLossFromContinuingOperationsBeforeIncomeTaxes_ffb05474-4b18-4296-7afc-ab8197174f6c" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReportingRevenueByMajorCategoryDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SegmentReportingTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/ShareBasedCompensation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/ShareBasedCompensationAwardsOutstandingAndExercisableDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/ShareBasedCompensationNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/ShareBasedCompensationShareBasedCompensationExpenseDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/ShareBasedCompensationTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SubsequentEvent" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.lgi.com/role/SubsequentEventDetails" xlink:type="extended" />
</link:linkbase>
