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MGRS/UTM/Latitude-Longitude Converter

For converting to and from the Military Grid Reference System (MGRS) and UTM/LatLong, the MGRS Conversion Utility from Mentor Software is a small utility (365kB download) which does only that. During installation, everything stops for a long while, but it’s not a crash – it will eventually complete the installation process. Once installed and run, just enter one of three kinds of coordinates, UTM, latitude/longitude, or MGRS, click Enter next to the entered coordinates, and they will be converted to the other two coordinate systems:


You can choose from 61 different datums in the “Ellipsoid” section at top. Latitude/longitude can be entered in decimal degrees, or as degree-minute-second with each set of numbers separated by a space. Set the MGRS precision with the up/down arrows; check “Use Bessel Code” for those areas where it’s appropriate for MGRS (mainly Europe – see the help file for more info).

And if you’re interested in displaying MGRS coordinate data in Google Earth, the website has a link that plots MGRS gridlines in Google Earth, with a central marker that displays the 1-meter MGRS reference.

Addendum: See this post for a roundup of MGRS utilities.

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