The Eye4Software Coordinate Calculator is a very easy to use tool, to performmap coordinate conversions. The software can be used to transform a single coordinate or a batch of coordinates read from a comma separated textfile. The software is shipped with a database containing almost every ellipsoid, datum and map projection around. It is possible to modify the definitions of all datums and projections stored in the database. You can also create user defined grids and datums, so you can extend the database with newly introduced map datums by entering the ellipsoid parameters and helmert 7 datum shift parameters, new map grids or projections can be added by just entering the projection type, origin latitude and/or longitude, scale factor, false easting and/or northing and parallel meridians in case of Lambert projections. Supported map projections include: Transverse Mercator (TM), Oblique Mercator, Mercator, Oblique Stereographic, Polar Stereographic, Eckert IV, Eckert VI, Cassini, Albers Equal Area Conal, Polyconic, Mollweide, Gauss Kruger, Krovak, Lambert Azimuthal Equal Area and Lambert Conformal Conic projection.