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This page doesnt appear to have been working for a while, it seems to work now after some tweaking. 21st Oct '08

Continue to Grid Magnetic Angle Calculator...

Use the following form to find the Magnetic Variation for any
location in Great Britain, service provided by

Name & Email (Required*)
Easting Northing

National Grid to nearest 100 m with prefix letters (see Or: Easting Value: (between 0 - 1000) Northing Value: (between 0 - 1000)


Latitude and Longitude (in decimal degrees):
Latitude: Longitude:


Your UK postcode:

Name of Location : (optional)

Name of Location (Optional)
Include Map No
Map of UK showing magnetic variation
This option takes approx. 20 seconds to produce the map

You can use the Coordinate Converter Page to enter Grid References, Postcodes or even Lat/Longs. Just look for the Magnetic Variation Link in Grid Reference Section. The Placename Gazetteer also links to the Co-ord converter.

* Quote from BGS site "Please type your name and e_mail address on the form as it is helpful for us to keep a record of the usage of our data." - this information is never even seen by

See Also World Magnetic Model 2005 Calculator

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