diff --git a/blockbook.go b/blockbook.go
index 77df065b..d92a4ddc 100644
--- a/blockbook.go
+++ b/blockbook.go
@@ -178,7 +178,7 @@ func main() {
 		if err != nil {
 			glog.Error("internalState: ", err)
 		}
-		glog.Info("DB size on disk: ", index.DatabaseSizeOnDisk())
+		glog.Info("DB size on disk: ", index.DatabaseSizeOnDisk(), ", DB size as computed: ", internalState.DBSizeTotal())
 		return
 	}
 
diff --git a/common/internalstate.go b/common/internalstate.go
index 4f77470e..24c0b989 100644
--- a/common/internalstate.go
+++ b/common/internalstate.go
@@ -113,6 +113,16 @@ func (is *InternalState) SetDBColumnStats(c int, rowsDiff int64, keysSumDiff int
 	is.DbColumns[c].ValuesSum = valuesSumDiff
 }
 
+func (is *InternalState) DBSizeTotal() int64 {
+	is.mux.Lock()
+	defer is.mux.Unlock()
+	total := int64(0)
+	for _, c := range is.DbColumns {
+		total += c.KeysSum + c.ValuesSum
+	}
+	return total
+}
+
 func (is *InternalState) Pack() ([]byte, error) {
 	is.mux.Lock()
 	defer is.mux.Unlock()