diff --git a/src/ol/extent.js b/src/ol/extent.js
index 304d9fc4d2..5d98818581 100644
--- a/src/ol/extent.js
+++ b/src/ol/extent.js
@@ -720,16 +720,6 @@ ol.extent.isEmpty = function(extent) {
 };
 
 
-/**
- * @param {ol.Extent} extent Extent.
- * @return {boolean} Is infinite.
- */
-ol.extent.isInfinite = function(extent) {
-  return extent[0] == -Infinity || extent[1] == -Infinity ||
-      extent[2] == Infinity || extent[3] == Infinity;
-};
-
-
 /**
  * @param {ol.Extent} extent Extent.
  * @param {ol.Extent=} opt_extent Extent.
diff --git a/test/spec/ol/extent.test.js b/test/spec/ol/extent.test.js
index 469694cf7f..63b1976e65 100644
--- a/test/spec/ol/extent.test.js
+++ b/test/spec/ol/extent.test.js
@@ -602,29 +602,6 @@ describe('ol.extent', function() {
     });
   });
 
-  describe('isInfinite', function() {
-    it('returns true for infinite extents', function() {
-      var extents = [
-        [-Infinity, 0, 0, 0],
-        [0, -Infinity, 0, 0],
-        [0, 0, +Infinity, 0],
-        [0, 0, 0, +Infinity]
-      ];
-      expect(ol.extent.isInfinite(extents[0])).to.be(true);
-      expect(ol.extent.isInfinite(extents[1])).to.be(true);
-      expect(ol.extent.isInfinite(extents[2])).to.be(true);
-      expect(ol.extent.isInfinite(extents[3])).to.be(true);
-    });
-    it('returns false for other extents', function() {
-      var extents = [
-        ol.extent.createEmpty(),
-        [1, 2, 3, 4]
-      ];
-      expect(ol.extent.isInfinite(extents[0])).to.be(false);
-      expect(ol.extent.isInfinite(extents[1])).to.be(false);
-    });
-  });
-
   describe('touches', function() {
 
     it('returns the expected value', function() {