diff --git a/NEWS b/NEWS
index cec971ef..40a39e9a 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,7 @@ procps-ng-NEXT
   * vmstat: Referesh memory statistics                     Debian #1027963
   * vmstat: Fix initial si,so,bi,bo,in & cs values         issue #15
                                                            Debian #668580
+  * vmstat: Fix conversion errors due to precision         merge #75
   * w: Add --pids option                                   merge #159
   * watch: Pass through beep                               issue #104
   * watch: -r option to not re-exec on SIGWINCH            merge #125
diff --git a/src/vmstat.c b/src/vmstat.c
index b4bcb8ff..eed130c4 100644
--- a/src/vmstat.c
+++ b/src/vmstat.c
@@ -336,8 +336,8 @@ static void new_header(void)
 
 static unsigned long unitConvert(unsigned long size)
 {
-    float cvSize;
-    cvSize = (float)size / dataUnit * ((statMode == SLABSTAT) ? 1 : 1024);
+    double cvSize;
+    cvSize = (double)size / dataUnit * ((statMode == SLABSTAT) ? 1 : 1024);
     return ((unsigned long)cvSize);
 }