diff --git a/lib/OpenLayers/Layer/Grid.js b/lib/OpenLayers/Layer/Grid.js
index 5b98147b32..06d2aab9ef 100644
--- a/lib/OpenLayers/Layer/Grid.js
+++ b/lib/OpenLayers/Layer/Grid.js
@@ -305,6 +305,17 @@ OpenLayers.Layer.Grid.prototype = Object.extend( new OpenLayers.Layer(), {
     addTile:function(bounds,position) {
         // Should be implemented by subclasses
     },
+    
+    /** 
+     * @returns Degrees per Pixel
+     * @type float
+     */
+    getResolution: function() {
+        var maxRes = this.map.getMaxResolution();
+        var zoom = this.map.getZoom();
+
+        return maxRes / Math.pow(2, zoom);
+    },
 
     /** @final @type String */
     CLASS_NAME: "OpenLayers.Grid"