diff --git a/src/bench/mempool_eviction.cpp b/src/bench/mempool_eviction.cpp
--- a/src/bench/mempool_eviction.cpp
+++ b/src/bench/mempool_eviction.cpp
@@ -115,7 +115,7 @@
         AddTx(tx6_r, 1100 * SATOSHI, pool);
         AddTx(tx7_r, 9000 * SATOSHI, pool);
         pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4);
-        pool.TrimToSize(GetVirtualTransactionSize(*tx1_r));
+        pool.TrimToSize(GetSerializeSize(*tx1_r, PROTOCOL_VERSION));
     }
 }
 
diff --git a/src/policy/policy.h b/src/policy/policy.h
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -130,12 +130,4 @@
 int64_t GetVirtualTransactionInputSize(const CTxIn &txin, int64_t nSigOpCost,
                                        unsigned int bytes_per_sigop);
 
-static inline int64_t GetVirtualTransactionSize(const CTransaction &tx) {
-    return GetVirtualTransactionSize(tx, 0, 0);
-}
-
-static inline int64_t GetVirtualTransactionInputSize(const CTxIn &txin) {
-    return GetVirtualTransactionInputSize(txin, 0, 0);
-}
-
 #endif // BITCOIN_POLICY_POLICY_H
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -301,9 +301,6 @@
         "<b>" + tr("Transaction ID") + ":</b> " + rec->getTxID() + "<br>";
     strHTML += "<b>" + tr("Transaction total size") + ":</b> " +
                QString::number(wtx.tx->GetTotalSize()) + " bytes<br>";
-    strHTML += "<b>" + tr("Transaction virtual size") + ":</b> " +
-               QString::number(GetVirtualTransactionSize(*wtx.tx)) +
-               " bytes<br>";
     strHTML += "<b>" + tr("Output index") + ":</b> " +
                QString::number(rec->getOutputIndex()) + "<br>";
 
diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp
--- a/src/test/miner_tests.cpp
+++ b/src/test/miner_tests.cpp
@@ -155,7 +155,7 @@
     tx.vout[0].nValue = int64_t(5000000000LL - 1000 - 50000) * SATOSHI;
     TxId freeTxId = tx.GetId();
     g_mempool.addUnchecked(freeTxId, entry.Fee(Amount::zero()).FromTx(tx));
-    size_t freeTxSize = GetVirtualTransactionSize(CTransaction(tx));
+    size_t freeTxSize = GetSerializeSize(tx, PROTOCOL_VERSION);
 
     // Calculate a fee on child transaction that will put the package just
     // below the block min tx fee (assuming 1 child tx of the same size).
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1699,7 +1699,7 @@
         // implies that we can sign for every input.
         return -1;
     }
-    return GetVirtualTransactionSize(CTransaction(txNew));
+    return GetSerializeSize(txNew, PROTOCOL_VERSION);
 }
 
 int CalculateMaximumSignedInputSize(const CTxOut &txout, const CWallet *wallet,
@@ -1711,7 +1711,7 @@
         // implies that we can sign for every input.
         return -1;
     }
-    return GetVirtualTransactionInputSize(txn.vin[0]);
+    return GetSerializeSize(txn.vin[0], PROTOCOL_VERSION);
 }
 
 void CWalletTx::GetAmounts(std::list<COutputEntry> &listReceived,