Ordnance Survey Grid Reference to latitude and longitude
This form converts Ordnance Survey six-figure grid references to latitude and longitude.
Enter grid coordinates in the standard 100-metre format, eastings first, then northings.
Both eastings and northings must be three-digit numbers.
Remember to select the correct 100-km grid square from the list.
Copyright 1995-98 by David Harper and Lynne Marie Stockman
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Last modified on 1 October 1998