diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 3b353fa58..8e05c9f80 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -153,6 +153,7 @@ void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue& entry)
 {
     const uint256 txid = tx.GetHash();
     entry.pushKV("txid", txid.GetHex());
+    entry.pushKV("size", (int)::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION));
     entry.pushKV("overwintered", tx.fOverwintered);
     entry.pushKV("version", tx.nVersion);
     if (tx.fOverwintered) {
@@ -288,6 +289,7 @@ UniValue getrawtransaction(const UniValue& params, bool fHelp)
             "{\n"
             "  \"hex\" : \"data\",       (string) The serialized, hex-encoded data for 'txid'\n"
             "  \"txid\" : \"id\",        (string) The transaction id (same as provided)\n"
+            "  \"size\" : n,             (numeric) The transaction size\n"
             "  \"version\" : n,          (numeric) The version\n"
             "  \"locktime\" : ttt,       (numeric) The lock time\n"
             "  \"expiryheight\" : ttt,   (numeric, optional) The block height after which the transaction expires\n"
@@ -632,6 +634,7 @@ UniValue decoderawtransaction(const UniValue& params, bool fHelp)
             "\nResult:\n"
             "{\n"
             "  \"txid\" : \"id\",        (string) The transaction id\n"
+            "  \"size\" : n,             (numeric) The transaction size\n"
             "  \"overwintered\" : bool   (boolean) The Overwintered flag\n"
             "  \"version\" : n,          (numeric) The version\n"
             "  \"versiongroupid\": \"hex\"   (string, optional) The version group id (Overwintered txs)\n"
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp
index fac041c80..1643b41db 100644
--- a/src/test/rpc_tests.cpp
+++ b/src/test/rpc_tests.cpp
@@ -46,6 +46,7 @@ BOOST_AUTO_TEST_CASE(rpc_rawparams)
     BOOST_CHECK_THROW(CallRPC("decoderawtransaction DEADBEEF"), runtime_error);
     string rawtx = "0100000001a15d57094aa7a21a28cb20b59aab8fc7d1149a3bdbcddba9c622e4f5f6a99ece010000006c493046022100f93bb0e7d8db7bd46e40132d1f8242026e045f03a0efe71bbb8e3f475e970d790221009337cd7f1f929f00cc6ff01f03729b069a7c21b59b1736ddfee5db5946c5da8c0121033b9b137ee87d5a812d6f506efdd37f0affa7ffc310711c06c7f3e097c9447c52ffffffff0100e1f505000000001976a9140389035a9225b3839e2bbf32d826a1e222031fd888ac00000000";
     BOOST_CHECK_NO_THROW(r = CallRPC(string("decoderawtransaction ")+rawtx));
+    BOOST_CHECK_EQUAL(find_value(r.get_obj(), "size").get_int(), 193);
     BOOST_CHECK_EQUAL(find_value(r.get_obj(), "version").get_int(), 1);
     BOOST_CHECK_EQUAL(find_value(r.get_obj(), "locktime").get_int(), 0);
     BOOST_CHECK_THROW(r = CallRPC(string("decoderawtransaction ")+rawtx+" extra"), runtime_error);