diff --git a/tasmota/tasmota_support/support_float.ino b/tasmota/tasmota_support/support_float.ino
index ac7527302..c6bfa9787 100644
--- a/tasmota/tasmota_support/support_float.ino
+++ b/tasmota/tasmota_support/support_float.ino
@@ -481,3 +481,7 @@ float Polynomialf(const float *factors, uint32_t degree, float x) {
   }
   return r;
 }
+
+float map_float(float x, float in_min, float in_max, float out_min, float out_max) {
+  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
+}
diff --git a/tasmota/tasmota_xdrv_driver/xdrv_10_rules.ino b/tasmota/tasmota_xdrv_driver/xdrv_10_rules.ino
index b68341668..d43b93aaf 100644
--- a/tasmota/tasmota_xdrv_driver/xdrv_10_rules.ino
+++ b/tasmota/tasmota_xdrv_driver/xdrv_10_rules.ino
@@ -2464,7 +2464,7 @@ void CmndScale(void)
         float fromHigh = CharToFloat(ArgV(argument, 3));
         float toLow = CharToFloat(ArgV(argument, 4));
         float toHigh = CharToFloat(ArgV(argument, 5));
-        float value = map_double(valueIN, fromLow, fromHigh, toLow, toHigh);
+        float value = map_float(valueIN, fromLow, fromHigh, toLow, toHigh);
         dtostrfd(value, Settings->flag2.calc_resolution, rules_vars[XdrvMailbox.index -1]);
         bitSet(Rules.vars_event, XdrvMailbox.index -1);
       } else {
@@ -2475,11 +2475,6 @@ void CmndScale(void)
   }
 }
 
-float map_double(float x, float in_min, float in_max, float out_min, float out_max)
-{
-  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
-}
-
 /*********************************************************************************************\
  * Interface
 \*********************************************************************************************/
diff --git a/tasmota/tasmota_xsns_sensor/xsns_18_pms5003.ino b/tasmota/tasmota_xsns_sensor/xsns_18_pms5003.ino
index 1da6a0058..88380531c 100644
--- a/tasmota/tasmota_xsns_sensor/xsns_18_pms5003.ino
+++ b/tasmota/tasmota_xsns_sensor/xsns_18_pms5003.ino
@@ -390,17 +390,17 @@ int usaEpaStandardPm2d5Adjustment(int pm25_standard, int relative_humidity)
 int compute_us_aqi(int pm25_standard)
 {
   if (pm25_standard <= 9) {
-    return map_double(pm25_standard, 0, 9, 0, 50);
+    return map_float(pm25_standard, 0, 9, 0, 50);
   } else if (pm25_standard <= 35) {
-    return map_double(pm25_standard, 9.1f, 35.4f, 51, 100);
+    return map_float(pm25_standard, 9.1f, 35.4f, 51, 100);
   } else if (pm25_standard <= 55) {
-    return map_double(pm25_standard, 35.5f, 55.4f, 101, 150);
+    return map_float(pm25_standard, 35.5f, 55.4f, 101, 150);
   } else if (pm25_standard <= 125) {
-    return map_double(pm25_standard, 55.5f, 125.4f, 151, 200);
+    return map_float(pm25_standard, 55.5f, 125.4f, 151, 200);
   } else if (pm25_standard <= 225) {
-    return map_double(pm25_standard, 125.5f, 225.4f, 201, 300);
+    return map_float(pm25_standard, 125.5f, 225.4f, 201, 300);
   } else if (pm25_standard <= 325) {
-    return map_double(pm25_standard, 225.5f, 325.4f, 301, 500);
+    return map_float(pm25_standard, 225.5f, 325.4f, 301, 500);
   } else {
     return 500;
   }