The Transverse Mercator projection in its various forms is the most widely used projected coordinate system for world topographical and offshore mapping.
All versions have the same basic characteristics and formulas.
Additionally there are variations in the width of the longitudinal zones for the projections used in different territories. UTM North hemisphere World wide. However, some territories use a Transverse Mercator with a natural origin at a latitude closer to that territory. In Epicentre the coordinate transformation method is the same for all forms of the Transverse Mercator projection. For areas south of the equator the value of latitude j will be negative and the formulas above, to compute the E and N, will automatically result in the correct values.