How do I convert an 8 figure grid reference to a 6 figure grid reference?
An 8 figure grid reference consists of 2 groups of 4 numbers, Easting and Northings (8 in total). All you need to do to convert an 8 figure reference to a 6 figure reference is to remove the last number from each group of 4 numbers. In other words remove the fourth and eighth digits. This will move you from an accuracy of 10 square meters to one of 100 square metres.
