The SK4481 Square Kilometre

SK4481 National Grid Square

Based in the East Midlands English Region & Yorkshire and the Humber English Region.

The SK4481 square kilometre intersects with the settlements of Killamarsh & Sheffield.

SK4481 is within the post town of Sheffield, Yorkshire.

The square is within North East Derbyshire District & Sheffield District councils.

The Point of Origin (0,0) is 585.06 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SK4481

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Map Series	link	Ordnance Survey
Explorer 1:25,000 278 Sheffield and Barnsley	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 111 Sheffield & Doncaster	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 120 Mansfield & Worksop	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 SK4481 and the vertical and horizontal line divides the square into four quadrants

Dividing the SK4481 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. SK , 44 and 81

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 SK + 44 + 3 + 81 + 5 would give you the six figure grid reference of SK443815

SK	44		81
SK	44	3	81	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	53.324036	-1.340884	444000	381000
South East Corner	53.324036	-1.325730	445000	381000
North West Corner	53.333107	-1.340884	444000	382000
North East Corner	53.333107	-1.325730	445000	382000