This is a python program that calculates Ohm values for 4-band resistors. I have not included tolerance into the calculation, so the user need only input the first three bands.

I wrote this program so I would not have to refer to Resistor Color Code charts any more, and thought others could find it useful as well.

I have released this under the MIT license - so have at it and use this if you find it useful!

Enjoy!