diff --git a/const.hpp b/const.hpp
index a7c034c..b8499a9 100644
--- a/const.hpp
+++ b/const.hpp
@@ -75,6 +75,7 @@
 static constexpr auto SERIAL_NUM_LEN = 12;
 static constexpr auto CCIN_LEN = 4;
 static constexpr auto CONVERT_MB_TO_KB = 1024;
+static constexpr auto CONVERT_GB_TO_KB = 1024 * 1024;
 
 static constexpr auto SPD_BYTE_2 = 2;
 static constexpr auto SPD_BYTE_3 = 3;
diff --git a/vpd-parser/memory_vpd_parser.cpp b/vpd-parser/memory_vpd_parser.cpp
index 1a7d83c..30e44aa 100644
--- a/vpd-parser/memory_vpd_parser.cpp
+++ b/vpd-parser/memory_vpd_parser.cpp
@@ -210,7 +210,7 @@
 
     } while (false);
 
-    return constants::CONVERT_MB_TO_KB * dimmSize;
+    return constants::CONVERT_GB_TO_KB * dimmSize;
 }
 
 auto memoryVpdParser::getDdr4BasedDDimmSize(Binary::const_iterator iterator)