OS Grid Reference Display


Note that the green box shows the OS grid square –
the marker may only show its south-west corner.

Use the normal Google maps controls to zoom in or out;
you can also drag the map round and change to Satellite view

If you lose the marker, press the button below.

6 figure grid ref (100m square):  

Credits This mapping tool is based on two libraries of Javascript code. Conversion between OS and other coordinate systems uses code written by Jonathan Stott. The original version of the code which interfaces with the Google maps API was written by Keith Balmer (as used on the Bedfordshire Natural History Society web site), and has been updated to use version 3 of the Google maps API by Peter Coxhead. All code is available under the GNU General Public License Version 2.
Page maintained by Peter Coxhead. Content last updated 22 May 2014. Javascript version