An online facility to create or view cycling routes on either Google or Ordnance Survey maps, with elevations, and options to upload and download routes to and from GPS units.
A UK-wide journey planner system for cyclists based on OpenStreetMap data; includes information about the project and its progress, and how to get involved.
Find a Cycle Route
Transport Direct's cycle route planner; includes maps and gradient profiles.
Based on data from the OpenStreetMap project; provides a range of options, from overviews of the National Cycle Network, to help with planning which streets to cycle on and where to park a bike.