<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Plus; Version: 6.5a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#Cover" roleURI="http://wisdomtree.eu/role/Cover" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#StatementsOfAssetsAndLiabilities" roleURI="http://wisdomtree.eu/role/StatementsOfAssetsAndLiabilities" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#StatementsOfAssetsAndLiabilitiesParenthetical" roleURI="http://wisdomtree.eu/role/StatementsOfAssetsAndLiabilitiesParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#ScheduleOfInvestmentParenthetical" roleURI="http://wisdomtree.eu/role/ScheduleOfInvestmentParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#ScheduleOfInvestment" roleURI="http://wisdomtree.eu/role/ScheduleOfInvestment" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#FairValuationSummary" roleURI="http://wisdomtree.eu/role/FairValuationSummary" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#StatementsOfOperations" roleURI="http://wisdomtree.eu/role/StatementsOfOperations" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#StatementsOfChangesInNetAssets" roleURI="http://wisdomtree.eu/role/StatementsOfChangesInNetAssets" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#StatementsOfCashFlows" roleURI="http://wisdomtree.eu/role/StatementsOfCashFlows" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#Organization" roleURI="http://wisdomtree.eu/role/Organization" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#SummaryOfSignificantAccountingPolicies" roleURI="http://wisdomtree.eu/role/SummaryOfSignificantAccountingPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#ExpensesOrganizationAndOfferingCosts" roleURI="http://wisdomtree.eu/role/ExpensesOrganizationAndOfferingCosts" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#RelatedPartyTransactions" roleURI="http://wisdomtree.eu/role/RelatedPartyTransactions" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#CommitmentsAndContingencies" roleURI="http://wisdomtree.eu/role/CommitmentsAndContingencies" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#Indemnification" roleURI="http://wisdomtree.eu/role/Indemnification" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#ConcentrationRisk" roleURI="http://wisdomtree.eu/role/ConcentrationRisk" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#DigitalAssetRisk" roleURI="http://wisdomtree.eu/role/DigitalAssetRisk" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#CreationsAndRedemptionOfShares" roleURI="http://wisdomtree.eu/role/CreationsAndRedemptionOfShares" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#SegmentReporting" roleURI="http://wisdomtree.eu/role/SegmentReporting" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#FinancialHighlights" roleURI="http://wisdomtree.eu/role/FinancialHighlights" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#SubsequentEvents" roleURI="http://wisdomtree.eu/role/SubsequentEvents" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#SummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://wisdomtree.eu/role/SummaryOfSignificantAccountingPoliciesPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#FinancialHighlightsTables" roleURI="http://wisdomtree.eu/role/FinancialHighlightsTables" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#ExpensesOrganizationAndOfferingCostsDetailsNarrative" roleURI="http://wisdomtree.eu/role/ExpensesOrganizationAndOfferingCostsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="btcw-20260331.xsd#FinancialHighlightsDetails" roleURI="http://wisdomtree.eu/role/FinancialHighlightsDetails" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/Cover" xlink:title="00000001 - Document - Cover" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/StatementsOfAssetsAndLiabilities" xlink:title="00000002 - Statement - Statements of Assets and Liabilities (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_InvestmentInBitcoinAtFairValue" xlink:label="loc_btcwInvestmentInBitcoinAtFairValue" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_btcwInvestmentInBitcoinAtFairValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_SponsorFeePayableNet" xlink:label="loc_btcwSponsorFeePayableNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_btcwSponsorFeePayableNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsNet" xlink:label="loc_us-gaapAssetsNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsNet" xlink:to="loc_us-gaapAssets" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsNet" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_NetAssets" xlink:label="loc_btcwNetAssets" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_CapitalStock" xlink:label="loc_btcwCapitalStock" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_btcwNetAssets" xlink:to="loc_btcwCapitalStock" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedLongTermCapitalGainLoss" xlink:label="loc_us-gaapInvestmentCompanyDistributableEarningsLossAccumulatedLongTermCapitalGainLoss" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_btcwNetAssets" xlink:to="loc_us-gaapInvestmentCompanyDistributableEarningsLossAccumulatedLongTermCapitalGainLoss" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/StatementsOfAssetsAndLiabilitiesParenthetical" xlink:title="00000003 - Statement - Statements of Assets and Liabilities (Unaudited) (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/ScheduleOfInvestmentParenthetical" xlink:title="00000004 - Statement - Schedule of Investment (Unaudited) (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/ScheduleOfInvestment" xlink:title="00000005 - Statement - Schedule of Investment (Unaudited)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/FairValuationSummary" xlink:title="00000006 - Statement - FAIR VALUATION SUMMARY">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentOwnedAtFairValue" xlink:label="loc_us-gaapInvestmentOwnedAtFairValue" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_DigitalAssets" xlink:label="loc_btcwDigitalAssets" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapInvestmentOwnedAtFairValue" xlink:to="loc_btcwDigitalAssets" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/StatementsOfOperations" xlink:title="00000007 - Statement - Statements of Operations (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SponsorFees" xlink:label="loc_us-gaapSponsorFees" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingExpenses" xlink:to="loc_us-gaapSponsorFees" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentIncome" xlink:label="loc_us-gaapNetInvestmentIncome" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeNet" xlink:label="loc_us-gaapInvestmentIncomeNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetInvestmentIncome" xlink:to="loc_us-gaapInvestmentIncomeNet" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetInvestmentIncome" xlink:to="loc_us-gaapOperatingExpenses" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_NetRealizedAndUnrealizedGainOnInvestmentInBitcoin" xlink:label="loc_btcwNetRealizedAndUnrealizedGainOnInvestmentInBitcoin" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_NetRealizedGainFromInvestmentInBitcoinSoldToPaySponsorFee" xlink:label="loc_btcwNetRealizedGainFromInvestmentInBitcoinSoldToPaySponsorFee" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_btcwNetRealizedAndUnrealizedGainOnInvestmentInBitcoin" xlink:to="loc_btcwNetRealizedGainFromInvestmentInBitcoinSoldToPaySponsorFee" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealizedInvestmentGainsLosses" xlink:label="loc_us-gaapRealizedInvestmentGainsLosses" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_btcwNetRealizedAndUnrealizedGainOnInvestmentInBitcoin" xlink:to="loc_us-gaapRealizedInvestmentGainsLosses" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_NetChangeInUnrealizedAppreciationdepreciationOnInvestmentInBitcoin" xlink:label="loc_btcwNetChangeInUnrealizedAppreciationdepreciationOnInvestmentInBitcoin" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_btcwNetRealizedAndUnrealizedGainOnInvestmentInBitcoin" xlink:to="loc_btcwNetChangeInUnrealizedAppreciationdepreciationOnInvestmentInBitcoin" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapNetInvestmentIncome" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_btcwNetRealizedAndUnrealizedGainOnInvestmentInBitcoin" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/StatementsOfChangesInNetAssets" xlink:title="00000008 - Statement - Statements of Changes in Net Assets (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaapIncomeLossFromContinuingOperations" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentIncome" xlink:label="loc_us-gaapNetInvestmentIncome" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperations" xlink:to="loc_us-gaapNetInvestmentIncome" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_NetRealizedGainOnInvestmentInBitcoinSoldToPaySponsorFee" xlink:label="loc_btcwNetRealizedGainOnInvestmentInBitcoinSoldToPaySponsorFee" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperations" xlink:to="loc_btcwNetRealizedGainOnInvestmentInBitcoinSoldToPaySponsorFee" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealizedInvestmentGainsLosses" xlink:label="loc_us-gaapRealizedInvestmentGainsLosses" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperations" xlink:to="loc_us-gaapRealizedInvestmentGainsLosses" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="loc_us-gaapUnrealizedGainLossOnInvestments" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperations" xlink:to="loc_us-gaapUnrealizedGainLossOnInvestments" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_NetIncreaseInNetAssetsResultingFromCapitalShareTransactions" xlink:label="loc_btcwNetIncreaseInNetAssetsResultingFromCapitalShareTransactions" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="loc_us-gaapProceedsFromIssuanceOrSaleOfEquity" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_btcwNetIncreaseInNetAssetsResultingFromCapitalShareTransactions" xlink:to="loc_us-gaapProceedsFromIssuanceOrSaleOfEquity" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_CostOfShareRedeemed" xlink:label="loc_btcwCostOfShareRedeemed" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_btcwNetIncreaseInNetAssetsResultingFromCapitalShareTransactions" xlink:to="loc_btcwCostOfShareRedeemed" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/StatementsOfCashFlows" xlink:title="00000009 - Statement - Statements of Cash Flows (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_PurchasesOfInvestmentInBitcoin" xlink:label="loc_btcwPurchasesOfInvestmentInBitcoin" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_btcwPurchasesOfInvestmentInBitcoin" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_ProceedsFromSalesOfBitcoinSoldForNetRedemptionOfShares" xlink:label="loc_btcwProceedsFromSalesOfBitcoinSoldForNetRedemptionOfShares" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_btcwProceedsFromSalesOfBitcoinSoldForNetRedemptionOfShares" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfLongtermInvestments" xlink:label="loc_us-gaapProceedsFromSaleOfLongtermInvestments" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapProceedsFromSaleOfLongtermInvestments" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfOtherInvestments" xlink:label="loc_us-gaapGainLossOnSaleOfOtherInvestments" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapGainLossOnSaleOfOtherInvestments" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_NetChangeInUnrealizedAppreciationFromInvestmentInBitcoin" xlink:label="loc_btcwNetChangeInUnrealizedAppreciationFromInvestmentInBitcoin" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_btcwNetChangeInUnrealizedAppreciationFromInvestmentInBitcoin" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_IncreaseDecreaseInSponsorFeePayable" xlink:label="loc_btcwIncreaseDecreaseInSponsorFeePayable" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_btcwIncreaseDecreaseInSponsorFeePayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfCommonStock" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="btcw-20260331.xsd#btcw_CostOfSharesRedeemed" xlink:label="loc_btcwCostOfSharesRedeemed" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_btcwCostOfSharesRedeemed" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/Organization" xlink:title="999010 - Disclosure - ORGANIZATION" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/SummaryOfSignificantAccountingPolicies" xlink:title="999011 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/ExpensesOrganizationAndOfferingCosts" xlink:title="999012 - Disclosure - EXPENSES, ORGANIZATION AND OFFERING COSTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/RelatedPartyTransactions" xlink:title="999013 - Disclosure - RELATED PARTY TRANSACTIONS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/CommitmentsAndContingencies" xlink:title="999014 - Disclosure - COMMITMENTS AND CONTINGENCIES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/Indemnification" xlink:title="999015 - Disclosure - INDEMNIFICATION" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/ConcentrationRisk" xlink:title="999016 - Disclosure - CONCENTRATION RISK" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/DigitalAssetRisk" xlink:title="999017 - Disclosure - DIGITAL ASSET RISK" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/CreationsAndRedemptionOfShares" xlink:title="999018 - Disclosure - CREATIONS AND REDEMPTION OF SHARES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/SegmentReporting" xlink:title="999019 - Disclosure - SEGMENT REPORTING" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/FinancialHighlights" xlink:title="999020 - Disclosure - FINANCIAL HIGHLIGHTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/SubsequentEvents" xlink:title="999021 - Disclosure - SUBSEQUENT EVENTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:title="999023 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/FinancialHighlightsTables" xlink:title="999024 - Disclosure - FINANCIAL HIGHLIGHTS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/ExpensesOrganizationAndOfferingCostsDetailsNarrative" xlink:title="999025 - Disclosure - EXPENSES, ORGANIZATION AND OFFERING COSTS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://wisdomtree.eu/role/FinancialHighlightsDetails" xlink:title="999026 - Disclosure - FINANCIAL HIGHLIGHTS (Details)" />
</link:linkbase>
