Getting Coordinates for Address from SalesForce


I am looking to get coordinates for address of contacts from salesforce data. How can I get this to working?

Currently I have concated all the related fields (street,city,state,country,code) of contact structure to get the address and then using google geocoding extension to get the coordinates.

But I am looking  to get the coordinates directly from salesforce. Is it possible? Appreciate for the help.