Convert from UTM - Universal Transverse Mercator - coordinates to latitude and longitude coordinates.
*) Based on the WGS84 Datum
In the UTM coordinate system a grid is used to specify locations on the surface of the Earth. The UTM system is not a single map projection but instead a series of sixty zones. Each zone is based on a specifically defined secant Transverse Mercator projection.
Note that the World Geodetic System WGS84 and the European Reference System ETRS89 are virtually identical and that coordinate transformation between the two systems in practical navigation is unnecessary. However, for high-precision surveying work - be aware that the two systems deviates more than half a meter.