diff --git a/libraries/Gelato/Number/Number.php b/libraries/Gelato/Number/Number.php
index 9f193ee..7110a76 100644
--- a/libraries/Gelato/Number/Number.php
+++ b/libraries/Gelato/Number/Number.php
@@ -47,6 +47,28 @@ class Number
         return @round($size/pow(1024, ($i=floor(log($size, 1024)))), 2).' '.$unit[($i < 0 ? 0 : $i)];
     }
 
+    /**
+     * Convert 'KB','MB','GB' in bytes
+     *
+     *  <code>
+     *      echo Number::convertToBytes('10MB');
+     *  </code>
+     *
+     * @param  string $num Number to convert
+     * @return int
+     */
+    public static function convertToBytes( $num ) {
+        $size  = strtolower( $size );
+        $bytes = (int) $size;
+        if ( strpos( $size, 'k' ) !== false )
+            $bytes = intval( $size ) * 1024;
+        elseif ( strpos( $size, 'm' ) !== false )
+            $bytes = intval($size) * 1024 * 1024;
+        elseif ( strpos( $size, 'g' ) !== false )
+            $bytes = intval( $size ) * 1024 * 1024 * 1024;
+        return $bytes;
+    }
+
     /**
      * Converts a number into a more readable human-type number.
      *