The SJ8770 Square Kilometre

SJ8770 National Grid Square

Based in the North West English Region.

SJ8770 is within the post town of Macclesfield, Cheshire.

The square is within Cheshire East council.

The Point of Origin (0,0) is 535.41 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SJ8770

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Map Series	link	Ordnance Survey
Explorer 1:25,000 268 Wilmslow, Macclesfield and Congleton	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 118 Stoke-on-Trent and Macclesfield	Shop for this map on amazon.co.uk

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 SJ8770 and the vertical and horizontal line divides the square into four quadrants

Dividing the SJ8770 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. SJ , 87 and 70

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 SJ + 87 + 3 + 70 + 5 would give you the six figure grid reference of SJ873705

SJ	87		70
SJ	87	3	70	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	53.226899	-2.196224	387000	370000
South East Corner	53.226899	-2.181204	388000	370000
North West Corner	53.235911	-2.196224	387000	371000
North East Corner	53.235911	-2.181204	388000	371000