Find UTM zone
iUTM™ - UTM, geodetic converter and UTM zones lookup for iPhone®.
This utility finds Universal Transverse Mercator (UTM) zone and its central meridian for a given geographic coordinate.
It takes into account existance of non-standard UTM zones which are used in North Atlantic regions and Norway.
If the provided geographic coordinate lies on a UTM zone boundary, it returns the list of the adjacent UTM zones from which a user can choose.