The SU8116 Square Kilometre

SU8116 National Grid Square

Based in the South East English Region.

SU8116 is within the post town of Chichester, Sussex.

The square is within Chichester District council.

The Point of Origin (0,0) is 494.79 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SU8116

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Map Series	link	Ordnance Survey
Explorer 1:25,000 ol8 Chichester, South Harting & Selsey	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 197 Chichester & The Downs	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 SU8116 and the vertical and horizontal line divides the square into four quadrants

Dividing the SU8116 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. SU , 81 and 16

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 SU + 81 + 3 + 16 + 5 would give you the six figure grid reference of SU813165

SU	81		16
SU	81	3	16	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	50.937618	-0.848567	481000	116000
South East Corner	50.937618	-0.834113	482000	116000
North West Corner	50.946750	-0.848567	481000	117000
North East Corner	50.946750	-0.834113	482000	117000