diff --git a/src/Toolbox.php b/src/Toolbox.php
index eb0ae2d0..c300fe75 100644
--- a/src/Toolbox.php
+++ b/src/Toolbox.php
@@ -336,6 +336,38 @@ public static function getEnergy(float $p): string
         return sprintf(__('%1$s %2$s'), $p, $human_readable_unit);
     }
 
+    /**
+     * Format a volume in L
+     *
+     * @param float $p  Volume in L
+     *
+     * @return string  formatted volume
+     **/
+    public static function getVolume(float $p): string
+    {
+        //TRANS: list of unit (Wh for watt.hour)
+        $units = [
+            __('L', 'carbon'),
+            __('m³', 'carbon'),
+            __('da', 'carbon'),
+            __('h', 'carbon'),
+            __('K', 'carbon'),
+        ];
+
+        $multiple = 990;
+        foreach ($units as $human_readable_unit) {
+            if ($p < $multiple) {
+                break;
+            }
+            $p /= 1000;
+        }
+
+        $p = self::dynamicRound($p);
+
+        //TRANS: %1$s is a number maybe float or string and %2$s the unit
+        return sprintf(__('%1$s %2$s'), $p, $human_readable_unit);
+    }
+
     public static function dynamicRound(float $number): float
     {
         if ($number < 10) {
@@ -370,7 +402,7 @@ public static function getHumanReadableValue(float $value, array $unit): string
                 return self::getEnergy($value) . $unit[1];
             case 'm³':
                 // Value is in m^3
-                return sprintf(__('%1$s %2$s', 'carbon'), $value * 1000, 'L');
+                return self::getVolume($value * 1000) . $unit[1];
             case 'mol':
                 break;
         }