How to select different units?

[Socrates]

Nice but how can I select different units for conversion?

[Christopher]

At this point you cannot, it is specifically written for INCHES to MM.

If I get some time, I might rewrite the program to be a lot more flexible.  In the mean time - the source code is available for anyone that wants to fix it.

Thanks for trying it out - I agree you should be able to change units and at some point - I'll update it.