The SE4855 Square Kilometre

SE4855 National Grid Square

Based in the Yorkshire and the Humber English Region.

SE4855 is within the post town of York, Yorkshire.

The square is within Harrogate District council.

The Point of Origin (0,0) is 638.54 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SE4855

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Map Series	link	Ordnance Survey
Explorer 1:25,000 290 York	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 105 York	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 SE4855 and the vertical and horizontal line divides the square into four quadrants

Dividing the SE4855 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 , 48 and 55

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 + 48 + 3 + 55 + 5 would give you the six figure grid reference of SE483555

SE	48		55
SE	48	3	55	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	53.988748	-1.269437	448000	455000
South East Corner	53.988748	-1.254027	449000	455000
North West Corner	53.997829	-1.269437	448000	456000
North East Corner	53.997829	-1.254027	449000	456000