The Coordinate Calculator interactively converts the coordinates of a point between coordinate systems. Like other TatukGIS products, the Coordinate Calculator supports 3,000 pre-defined coordinate systems (including all U.S. State Planes) and custom coordinate systems defined from 120 supported projections and 350 supported datums. The coordinate system support reflects EPSG codes and OpenGIS WKT coordinate system definitions.
This application is available for the Windows and Mac operating systems.

For batch conversion of large amounts of coordinate data (for many points) in a single operation, run the 'CSConverter' script in the TatukGIS Editor product. This is one of many scripts packaged with the Editor.