Route finding can be used with desktops, servers, or over the Internet.
PostcodeAnalyst 3

Add routing to PostcodeAnalyst 3 with the RouteFinda plug-ins.

Use the Route Calculator plug-in to calculate distance, drive-times, routes, and ranges by entering postcodes or clicking on the map. See the routes and destinations overlaid on the road atlas.

Suitable for existing PostcodeAnalyst 3 users, and those who want to calculate distances and routes in a desktop environment

Postcode Calculator 2 Pro

Powerful batch processing of postcodes on your desktop. Calculate the quickest or shortest route between two postcodes, returning the distance and drive time, or process a spreadsheet of postcodes, appending distance and drive-time to each row.

Suitable for those with spreadsheets or databases of postcodes who wish to calculate distances in a desktop environment

Road Distance API

Integrate route finding into your website or application.

Use the simple SOAP API to calculate distances and routes from ASP, PHP, VB, C/C++ or any other language with a SOAP interface.

Run a route finding server under Linux or Windows, or use our 'pay-per-click' hosted service.

Suitable for those needing distance calculations and routes on a server or website.

Graticule's Road Distance and Routing API