The Eye4Software Coordinate Calculator perform transformations between different coordinate systems. The software can be used to transform a single coordinate or a batch of coordinates read from a comma separated textfile. Supported map projections are Transverse Mercator, Stereographic, Lambert 1SP and Lambert 2SP. 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, Lambert 2SP, Lambert 1SP, and Stereographic.