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Ordnance Survey FAQ and Excel Mapping Routines

Other Implementations and Sites


  • Russ Hore has provided an online web convertor which does latitude and longitude to OS reference at  Note that latitude and longitude are with reference to the Ordnance Survey 1936 datum.
  • does conversions of UK postcodes, OS references and Latitude/Longitude and shows a map.  Essential if you travel often.

Phil Brady © 2020