The TQ1666 Square Kilometre

TQ1666 National Grid Square

Based in the South East English Region.

The TQ1666 square kilometre intersects with the settlements of Hinchley Wood,Long Ditton & Thames Ditton.

TQ1666 is within the post towns of Esher, Surrey, Surbiton, Surrey & Thames Ditton, Surrey.

The square is within Elmbridge District council.

The Point of Origin (0,0) is 542.04 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for TQ1666

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Map Series	link	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 1:50,000 176 West London	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 TQ1666 and the vertical and horizontal line divides the square into four quadrants

Dividing the TQ1666 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 , 16 and 66

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 + 16 + 3 + 66 + 5 would give you the six figure grid reference of TQ163665

TQ	16		66
TQ	16	3	66	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	51.381000	-0.334529	516000	166000
South East Corner	51.381000	-0.319838	517000	166000
North West Corner	51.390193	-0.334529	516000	167000
North East Corner	51.390193	-0.319838	517000	167000