Mimee

Mimee is a program which can convert geographical coordinates between various datums and formats.

Features
Supported coordinates formats are : 232 datums and 36 grids are provided in Mimee.
 * Latitude and longitude in decimal degrees, degrees and decimal minutes, degrees-minutes-seconds, or grads
 * Geocentric (or Cartesian) coordinates (XYZ)
 * UTM
 * Transverse Mercator, Oblique Mercator, and Conic.

Compatibility
The online version is cross-platform. It can be used in any navigator in Linux, Mac, Windows, and in mobile phones. The stand-alone versions runs on Linux and Palm OS.