diff --git a/libraries/AP_RangeFinder/AP_RangeFinder_BLPing.cpp b/libraries/AP_RangeFinder/AP_RangeFinder_BLPing.cpp
index e7776e0f95..0c889403a0 100644
--- a/libraries/AP_RangeFinder/AP_RangeFinder_BLPing.cpp
+++ b/libraries/AP_RangeFinder/AP_RangeFinder_BLPing.cpp
@@ -68,7 +68,7 @@ bool AP_RangeFinder_BLPing::get_reading(float &reading_m)
         }
         if (protocol.parse_byte(b) == PingProtocol::MessageId::DISTANCE_SIMPLE) {
             averageStruct.count++;
-            averageStruct.sum_cm += protocol.get_distance_mm()/10.0f;
+            averageStruct.sum_cm += protocol.get_distance_mm()*0.1f;
         }
     }
 
diff --git a/libraries/AP_RangeFinder/AP_RangeFinder_LeddarVu8.cpp b/libraries/AP_RangeFinder/AP_RangeFinder_LeddarVu8.cpp
index 3d90877d83..6a2f1bf169 100644
--- a/libraries/AP_RangeFinder/AP_RangeFinder_LeddarVu8.cpp
+++ b/libraries/AP_RangeFinder/AP_RangeFinder_LeddarVu8.cpp
@@ -78,7 +78,7 @@ bool AP_RangeFinder_LeddarVu8::get_reading(float &reading_m)
         } else {
             // if only out of range readings return larger of
             // driver defined maximum range for the model and user defined max range + 1m
-            reading_m = MAX(LEDDARVU8_DIST_MAX_CM, max_distance_cm() + LEDDARVU8_OUT_OF_RANGE_ADD_CM)/100.0f;
+            reading_m = MAX(LEDDARVU8_DIST_MAX_CM, max_distance_cm() + LEDDARVU8_OUT_OF_RANGE_ADD_CM)*0.01f;
         }
         return true;
     }