diff --git a/classes/Geo.php b/classes/Geo.php
new file mode 100644
index 0000000..89b894c
--- /dev/null
+++ b/classes/Geo.php
@@ -0,0 +1,23 @@
+<?php
+
+class Geo
+{
+
+	static function distance($latlng1, $latlng2)
+	{
+
+		// Convert degrees to radians.
+		$lat1 = deg2rad($latlng1['lat']);
+		$lng1 = deg2rad($latlng1['lng']);
+		$lat2 = deg2rad($latlng2['lat']);
+		$lng2 = deg2rad($latlng2['lng']);
+
+		// Calculate delta longitude and latitude.
+		$delta_lat = ($lat2 - $lat1);
+		$delta_lng = ($lng2 - $lng1);
+
+		return (6378137 * acos(cos($lat1) * cos($lat2) * cos($lng1 - $lng2) + sin($lat1) * sin($lat2)));
+//		return round(6378137 * acos(cos($lat1) * cos($lat2) * cos($lng1 - $lng2) + sin($lat1) * sin($lat2)));
+	}
+
+}