diff --git a/conf/glances-grafana.json b/conf/glances-grafana.json
index 45926e94..c614a3b6 100644
--- a/conf/glances-grafana.json
+++ b/conf/glances-grafana.json
@@ -1029,7 +1029,7 @@
                 }
               ],
               "measurement": "localhost.diskio",
-              "query": "SELECT mean(\"sda2.read_bytes\") FROM \"localhost.diskio\" WHERE $timeFilter GROUP BY time($interval) fill(null)",
+              "query": "SELECT mean(\"sda2.read_bytes\")/mean(\"sda2.time_since_update\")*8 FROM \"localhost.diskio\" WHERE $timeFilter GROUP BY time($interval) fill(null)",
               "refId": "A",
               "resultFormat": "time_series",
               "select": [
@@ -1069,7 +1069,7 @@
                 }
               ],
               "measurement": "localhost.diskio",
-              "query": "SELECT mean(\"sda2.write_bytes\") FROM \"localhost.diskio\" WHERE $timeFilter GROUP BY time($interval) fill(null)",
+              "query": "SELECT mean(\"sda2.write_bytes\")/mean(\"sda2.time_since_update\")*8 FROM \"localhost.diskio\" WHERE $timeFilter GROUP BY time($interval) fill(null)",
               "refId": "B",
               "resultFormat": "time_series",
               "select": [
@@ -2227,4 +2227,4 @@
   "schemaVersion": 8,
   "version": 3,
   "links": []
-}
\ No newline at end of file
+}