The SP9663 Square Kilometre

SP9663 National Grid Square

Based in the East Midlands English Region & Eastern English Region.

SP9663 is within the post towns of Bedford, Bedfordshire, Rushden, Northamptonshire & Wellingborough, Northamptonshire.

The square is within Bedford & North Northamptonshire councils.

The Point of Origin (0,0) is 561.41 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SP9663

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Map Series	link	Ordnance Survey
Explorer 1:25,000 224 Corby, Kettering and Wellingborough		Buy Direct from the Ordnance Survey
Landranger 1:50,000 153 Bedford & Huntingdon	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey

This extract is taken from the Ordnance Survey six-inch to the mile series surveyed from 1888-1913. The scale is 1:10,560.

The Square overlayed over the map represents the extent of SP9663 and the vertical and horizontal line divides the square into four quadrants

Dividing the SP9663 Square to get a six figure Grid Reference

A helpful reminder for calculating grid references is across the landing and up the stairs.

For example if your house was located in a square that in the fourth square across and sixth square up and you wanted to work out its six figure grid refence.

First, You would divide the four figure grid reference into three parts. SP , 96 and 63

Count across starting with zero. This would give you three. Make a note that X for Across (A Cross) = 3.

Count up starting with zero. This would give you five. Make a note that Y = 5.

So to put it together SP + 96 + 3 + 63 + 5 would give you the six figure grid reference of SP963635

SP	96		63
SP	96	3	63	5

A six figure grid reference would be accurate to 10 metres. To achieve a greater level of accuracy this 10 metre square would be divided into a grid 10 by 10 and the process repeated.

This would produce an 8 figure grid reference that would be accurate to a square metre!

Corner	Latitude	Longitude	Easting	Northing
South West Corner	52.256643	-0.594961	496000	263000
South East Corner	52.256643	-0.580029	497000	263000
North West Corner	52.265806	-0.594961	496000	264000
North East Corner	52.265806	-0.580029	497000	264000