LatLongUTM
This is a small utility program to translate Longitude and Latitude coordinates into UTM coordinates and vice versa. You can choose from several different map datums, edit data and have it converted instantaneously to the other format, etc. Additionally, it can calculate all of the coordinates in a single UTM zone, even if the data span several UTM zones. For example, say your data span UTM zones 5 to 9. With this program, you can have the program calculate the coordinates of all data points in, say zone 7 [be careful, however, as data spanning more than about 7 or 8 zone can have seriously negative artifacts when processed this way!]. Finally, the program has a built in world wide map of UTM zones (though it does not plot your data on the map, at least yet).