How to convert 100 amps to watts

How to convert electric current of 100 amps (A) to electric power in watts (W).

You can calculate (but not convert) the watts from amps and volts:

For DC power supply, watts are equal to amps times volts.

watts = amps × volts

watts = 100A × 12V = 1200W

For AC power supply, watts are equal to the power factor times amps times volts.

watts = PF × amps × volts

For resistive load without inductors or capacitors, the power factor is equal to 1:

watts = 1 × 100A × 120V = 12000W

For inductive load (like induction motor), the power factor can be approximately equal to 0.8:

watts = 0.8 × 100A × 120V = 9600W

For AC power supply, watts are equal to the power factor times amps times volts.

watts = PF × amps × volts

For resistive load without inductors or capacitors, the power factor is equal to 1:

watts = 1 × 100A × 230V = 23000W

For inductive load (like induction motor), the power factor can be approximately equal to 0.8:

watts = 0.8 × 100A × 230V = 18400W

See also