National grid to lat long conversion

Carl Drinkwater | 29degrees carl at
Tue Aug 28 19:26:03 CEST 2007

> I have a load of British National Grid references that I want to
> convert to decimal degrees so I can create a google KML file. Does
> anyone know of a module to do this?

If there isn't a module available, you could roll your own.  The  
equations are to be found at : 

They shouldn't be too hard to Pythonise.


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