The UK’s Ordnance Survey has a free high-accuracy coordinate converter for transforming from GPS coordinates (latitude/longitude/WGS84) to OSGB National Grid (eastings and northings):
In addition to this single-coordinate-set converter, there’s an online batch converter, and additional converter options for coordinates in the Irish Grid (good for Northern Ireland and the Republic of Ireland). There’s supposedly a free Windows stand-alone converter that you can download after filling out registration info, but the registration form doesn’t like my US phone number, so I couldn’t check it out. The OS provides both a set of equations/parameters, and a free DLL, if you want to incorporate the coordinate converter in your own software. And there’s a page with more information on coordinate systems used in Great Britain, including their free “Guide to coordinate systems in Great Britain“.
Other free services at the Ordnance Survey website include a RINEX data server for GPS post-processing, and several searchable databases of assorted geodetic control points:
- 900 GPS reference marks
- 750,000 benchmarks
- 21,000 horizontal control stations
HT to Malc.
Related posts:
- Online Lat/Long – UTM – Grid Coordinate Converter
- Multiple Coordinate Systems In Google Maps, Reverse Geocoding, And More With The Worldwide Coordinate Converter
- Coordinate Converters II – Worldwide Coordinate Conversion
- MGRS/UTM/Latitude-Longitude Converter
- Coordinate Converters I – NAD Conversions
- Coordinate Converters III – Two Freeware Converters
- Google Earth Coordinate System Grids
- Options For MGRS Coordinate Conversion And Viewing
- Plot A Coordinate Position On Different Map Pages
- Spreadsheet Tools For Lat/Long, MGRS and UTM Coordinate Conversions
A few other sites are just as useful in converting UK coordinates:
http://www.nearby.org.uk/coord.cgi
http://www.osconverter.co.uk/ToWGS84.aspx
javascript code and the maths (old but the maths is good.)
http://www.dorcus.co.uk/carabus/ll_ngr.html
Are there any sites or tools for the batch conversion of (European 1950) DMS to European UTM coordinates for areas outside the UK? To complicate matters, ideally the tool I am looking for should work on a Mac, as I don’t have a PC nor Windows. Thank you SO much for any tips on this
Did you see this post:
http://freegeographytools.com/2009/online-coordinate-conversion-and-epsg-code-lookup