The SU0923 Square Kilometre

SU0923 National Grid Square

Based in the South West English Region.

SU0923 is within the post towns of Fordingbridge, Hampshire & Salisbury, Wiltshire.

The square is within Wiltshire council.

The Point of Origin (0,0) is 427.09 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SU0923

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Map Series	link	Ordnance Survey
Explorer 1:25,000 130 Salisbury and Stonehenge	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 184 Salisbury and The Plain	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 SU0923 and the vertical and horizontal line divides the square into four quadrants

Dividing the SU0923 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 , 09 and 23

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 + 09 + 3 + 23 + 5 would give you the six figure grid reference of SU093235

SU	09		23
SU	09	3	23	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	51.006294	-1.873092	409000	123000
South East Corner	51.006294	-1.858812	410000	123000
North West Corner	51.015302	-1.873092	409000	124000
North East Corner	51.015302	-1.858812	410000	124000