The NS4516 Square Kilometre

NS4516 National Grid Square

Based in the South Scotland region of Scotland.

NS4516 is within the post towns of Ayr, Ayrshire & Cumnock, Ayrshire.

The square is within East Ayrshire council.

The Point of Origin (0,0) is 662.93 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for NS4516

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Map Series	link	Ordnance Survey
Explorer 1:25,000 326 Ayr and Troon		Buy Direct from the Ordnance Survey
Explorer 1:25,000 327 Cumnock and Dalmellington		Buy Direct from the Ordnance Survey
Landranger 1:50,000 70 Ayr & Kilmarnock	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 NS4516 and the vertical and horizontal line divides the square into four quadrants

Dividing the NS4516 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. NS , 45 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 NS + 45 + 3 + 16 + 5 would give you the six figure grid reference of NS453165

NS	45		16
NS	45	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	55.413344	-4.450583	245000	616000
South East Corner	55.413344	-4.434247	246000	616000
North West Corner	55.422636	-4.450583	245000	617000
North East Corner	55.422636	-4.434247	246000	617000