How to convert 10 amps to watts

How to convert electric current of 10 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 = 10A × 11V = 110W

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 × 10A × 110V = 1100W

For inductive load (like induction motor), the power factor can be approximately equal to 0.7:

watts = 0.7 × 10A × 110V = 770W

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 × 10A × 220V = 2200W

For inductive load (like induction motor), the power factor can be approximately equal to 0.7:

watts = 0.7 × 10A × 220V = 1540W

See also