Dear Igaal,
As per your project details, can use either Waze API or Google Maps API to first get the lat/lon of the two addresses, and then get the distance between the two of them.
Can you please send more details about the project, such as development language (PHP/ASP.NET), and whether you want to display the quote directly on the web page, or send it by email.
Please feel free to post a message if you have any queries.
With best regards,
Sachin Bhatt
JSK Software