title: Calculating the distance between two postcodes using OSRM
body: <p>I've been looking at OSRM for distance calculations and essentially have the following query which does a distance calculation between two postcodes in the UK.</p>
  
  <pre><code>http://maps.googleapis.com/maps/api/distancematrix/json?origins=KY3%200RS&amp;destinations=DD3%209LE&amp;sensor=false&amp;units=imperial
  </code></pre>
  
  <p>The server API documentation (<a href="https://github.com/DennisOSRM/Project-OSRM/wiki/Server-api" rel="nofollow">https://github.com/DennisOSRM/Project-OSRM/wiki/Server-api</a>) doesn't seem to have any mention of post codes, only londitude and latitude.</p>
  
  <p>Does anyone know what the equivalent to the Google maps query in OSRM would be? Also, if you have any other recommendations on FOSS routing projects and how retrieving a distance based on two postcodes could be achieved.</p>