diff --git a/src/ol/geom/polygon.js b/src/ol/geom/polygon.js
index b361fd7f34..7f2b1430d3 100644
--- a/src/ol/geom/polygon.js
+++ b/src/ol/geom/polygon.js
@@ -22,6 +22,18 @@ ol.geom.Polygon = function(coordinates, opt_layout) {
    */
   this.ends_ = [];
 
+  /**
+   * @private
+   * @type {number}
+   */
+  this.interiorPointRevision_ = -1;
+
+  /**
+   * @private
+   * @type {ol.Coordinate}
+   */
+  this.interiorPoint_ = null;
+
   this.setCoordinates(coordinates, opt_layout);
 
 };
@@ -58,10 +70,14 @@ ol.geom.Polygon.prototype.getEnds = function() {
  * @return {ol.Coordinate} Interior point.
  */
 ol.geom.Polygon.prototype.getInteriorPoint = function() {
-  var extent = this.getExtent();
-  var y = (extent[1] + extent[3]) / 2;
-  return ol.geom.flat.linearRingsGetInteriorPoint(
-      this.flatCoordinates, 0, this.ends_, this.stride, y);
+  if (this.interiorPointRevision_ != this.revision) {
+    var extent = this.getExtent();
+    var y = (extent[1] + extent[3]) / 2;
+    this.interiorPoint_ = ol.geom.flat.linearRingsGetInteriorPoint(
+        this.flatCoordinates, 0, this.ends_, this.stride, y);
+    this.interiorPointRevision_ = this.revision;
+  }
+  return this.interiorPoint_;
 };