The TQ1158 Square Kilometre

TQ1158 National Grid Square

Based in the South East English Region.

The TQ1158 square kilometre intersects with the settlement of Downside.

TQ1158 is within the post town of Cobham, Surrey.

The square is within Elmbridge District & Mole Valley District councils.

The Point of Origin (0,0) is 534.87 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for TQ1158

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Map Series	link	Ordnance Survey
Explorer 1:25,000 146 Dorking, Box Hill and Reigate	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 161 London South, Westminster, Greenwich, Croydon, Esher & Twickenham	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 187 Dorking & Reigate	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 TQ1158 and the vertical and horizontal line divides the square into four quadrants

Dividing the TQ1158 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. TQ , 11 and 58

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 TQ + 11 + 3 + 58 + 5 would give you the six figure grid reference of TQ113585

TQ	11		58
TQ	11	3	58	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	51.310102	-0.408837	511000	158000
South East Corner	51.310102	-0.394182	512000	158000
North West Corner	51.319286	-0.408837	511000	159000
North East Corner	51.319286	-0.394182	512000	159000