The SP9142 Square Kilometre

SP9142 National Grid Square

Based in the South East English Region.

The SP9142 square kilometre intersects with the settlement of Moulsoe.

SP9142 is within the post town of Newport Pagnell, Buckinghamshire.

The square is within Milton Keynes council.

The Point of Origin (0,0) is 547.40 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SP9142

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Map Series	link	Ordnance Survey
Explorer 1:25,000 207 Newport Pagnell and Northampton South	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 192 Buckingham and Milton Keynes	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 152 Northampton & Milton Keynes	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 SP9142 and the vertical and horizontal line divides the square into four quadrants

Dividing the SP9142 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 , 91 and 42

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 + 91 + 3 + 42 + 5 would give you the six figure grid reference of SP913425

SP	91		42
SP	91	3	42	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	52.068751	-0.673810	491000	242000
South East Corner	52.068751	-0.658956	492000	242000
North West Corner	52.077904	-0.673810	491000	243000
North East Corner	52.077904	-0.658956	492000	243000