diff --git a/lib/OpenLayers/BaseTypes.js b/lib/OpenLayers/BaseTypes.js
index 7ac2c5c066..d42ae9e962 100644
--- a/lib/OpenLayers/BaseTypes.js
+++ b/lib/OpenLayers/BaseTypes.js
@@ -364,9 +364,17 @@ OpenLayers.Bounds.prototype = {
     *         (ex. <i>"5,42,10,45"</i>)
     * @type String
     */
-    toBBOX:function() {
-        return (this.left + "," + this.bottom + ","
-                + this.right + "," + this.top);
+    toBBOX:function(power) {
+        var mult;
+        if (power) {
+            mult = Math.pow(10,power);
+        } else { 
+            mult = Math.pow(10,6); 
+        }  
+        return (Math.round(this.left*mult)/mult + "," + 
+               Math.round(this.bottom*mult)/mult + "," + 
+               Math.round(this.right*mult)/mult + "," + 
+               Math.round(this.top*mult)/mult);
     },
     
     /**
diff --git a/tests/test_Bounds.html b/tests/test_Bounds.html
index cc5d84af4b..947febdea7 100644
--- a/tests/test_Bounds.html
+++ b/tests/test_Bounds.html
@@ -41,9 +41,18 @@
     }
 
      function test_02_Bounds_toBBOX(t) {
-         t.plan( 1 );
+         t.plan( 5 );
          bounds = new OpenLayers.Bounds(1,2,3,4);
          t.eq( bounds.toBBOX(), "1,2,3,4", "toBBOX() returns correct value." );
+         bounds = new OpenLayers.Bounds(1.00000001,2,3,4);
+         t.eq( bounds.toBBOX(), "1,2,3,4", "toBBOX() rounds off small differences." );
+         bounds = new OpenLayers.Bounds(1.00000001,2.5,3,4);
+         t.eq( bounds.toBBOX(), "1,2.5,3,4", "toBBOX() returns correct value. for a half number" );
+         bounds = new OpenLayers.Bounds(1,2.5555555,3,4);
+         t.eq( bounds.toBBOX(), "1,2.555556,3,4", "toBBOX() rounds to correct value." );
+         bounds = new OpenLayers.Bounds(1,2.5555555,3,4);
+         t.eq( bounds.toBBOX(1), "1,2.6,3,4", "toBBOX() rounds to correct value with power provided." );
+         bounds = new OpenLayers.Bounds(1,2.5555555,3,4);
      }
 
      function test_03_Bounds_toString(t) {