Find British National Grid Reference From MapInstructions Click on the map anywhere in Britain (Scotland, England and Wales). You will then see the Northings, Eastings and National Grid Reference (NGR) below the map. If you wish to find the NGR from Ireland, make sure to tick on the option "Output NGR for Ireland?". References How to convert latitude and longitude to a British National Grid Reference. Version History 8th August 2013 - Update
