The SE1820 Square Kilometre

SE1820 National Grid Square

Based in the Yorkshire and the Humber English Region.

The SE1820 square kilometre intersects with the settlement of Mirfield.

SE1820 is within the post towns of Huddersfield, Yorkshire & Mirfield, Yorkshire.

The square is within Calderdale District & Kirklees District councils.

The Point of Origin (0,0) is 592.56 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SE1820

If you purchase a map through the links below, we may earn an affiliate commission.

Map Series	link	Ordnance Survey
Explorer 1:25,000 288 Bradford and Huddersfield	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 104 Leeds & Bradford	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 SE1820 and the vertical and horizontal line divides the square into four quadrants

Dividing the SE1820 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. SE , 18 and 20

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 SE + 18 + 3 + 20 + 5 would give you the six figure grid reference of SE183205

SE	18		20
SE	18	3	20	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	53.676141	-1.728995	418000	420000
South East Corner	53.676141	-1.713797	419000	420000
North West Corner	53.685165	-1.728995	418000	421000
North East Corner	53.685165	-1.713797	419000	421000