Electronics Assistant is a Windows program that performs electronics-related calculations. It includes a resistor colour code calculator, resistance, capacitance and power calculations and more. Details of calculations can be saved or printed. It provides all the functions found in the calculators section of this site and more in a stand-alone user friendly program.
A simple little Ohm's Law calculator - input two of the known values (power, voltage, current, resistance) and get the last two calculated.Might be handy for quick calculations - has been for me, anyway.