mgrs_to_utm - convert MGRS coordiantes to UTM

mgrs_to_utm is a small utility to convert Military Grid Reference System (MGRS) coordinates to UTM (Universal Transvers Mercator). MGRS coordinates look like this:

This breaks down into pieces:

• 49P - a UTM grid zone: a longitude zone (49) and latitude zone (P)
• AN - a two-letter grid that corresponds to a 100,000-meter grid within the zone
• 730 - a two- to five-digit easting coordinate
• 040 - a two- to five-digit northing coordinate (must be the same legth as the easting)

A UTM coordinate consists of a zone, a hemisphere (north or south), an easting and a northing. mgrs_to_utm will convert an MGRS coordinate string into those four values.

mgrs_to_utm is written in C. To install it, download the source code (both files) into a folder build it using GCC:

It will also build in Visual C++ 2008.

mgrs_to_utm is a command-line program. To convert MGRS to UTM coordinates, pass the MGRS coordinate as a parameter to mgrs_to_utm:

This software is released under the GNU General Public License (GPL). However, it's derived from Geotrans 2.4.1, and any alteration must comply with its license.