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Grid InQuest coordinate transformations software

Our Grid InQuest software transforms between the ETRS89 (WGS84) and OSGB36 National Grid coordinate systems using the same transformation models (OSTN02/OSGM02) as our online Coordinate transformer.

You can use Grid InQuestto transform a single coordinate or a batch of coordinates and incorporates a wizard so you can even define your own input file format.

Grid InQuest is available to install directly onto a PC, which means it doesn't have to be used via the Internet.

Download Grid InQuest (14 MB)

This software, compatible with Microsoft Windows XP, Vista and Windows 7, is licensed pursuant to the terms of the BSD Licence.

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For general enquiries, complaints, feedback or suggestions, email: customerservices@ordnancesurvey.co.uk or call us on 08456 05 05 05