Watts Volts Amps Ohms Calculator Enter watts: micro-watts (μW)milli-watts (mW)watts (W)kilo-watts (kW)mega-watts (MW) Enter volts: micro-volts (μV)milli-volts (mV)volts (V)kilo-volts (kV)mega-volts (MV) Enter amps: micro-amps (μA)milli-amps (mA)amps (A)kilo-amps (kA)mega-amps (MA) Enter ohms: ohms (Ω)kilo-ohms (kΩ)mega-ohms (MΩ)