Ray West (Consultancy)

This small, free program is stuffed full of conversion constants, and if there isn't enough for you, you can add your own. You can use it to convert imperial stepper motor constants to metric, for example, but be aware that some constants are in USA units, not UK.

If you link through to the author's web site (help menu item - about) you can find some further information.

Its downloaded as a 153kB zip file, so you will need an unzip program.