Amps to Watts calculator

Enter the current in amps (A), voltage in volts (V), then press the Calculate button to get the result in watts (W).

DC Amps to watts calculation

P_(W) =I_(A) × V_(V)

The power P in watts (W) is equal to the phase current I in amps (A), multiplied by the voltage V in volts (V).

AC single phase Amps to watts calculation

P_(W) = PF × I_(A) × V_(V)

The real power P in watts (W) is equal to the power factor PF, multiplied by the phase current I in amps (A), multiplied by the RMS voltage V in volts (V).

AC three phase Amps to watts calculation

Line to line voltage

P_(W) = √3 × PF × I_(A) × V_{L-L (V)}

The real power P in watts (W) is equal to square root of 3, multiplied by the power factor PF, multiplied by the phase current I in amps (A), multiplied by the line to line RMS voltage V_L-L in volts (V).

Line to neutral voltage

P_(W) = 3 × PF × I_(A) × V_L-N (V)

The real power P in watts (W) is equal to 3, multiplied by the power factor PF, multiplied by the phase current I in amps (A), multiplied by the line to neutral RMS voltage V_L-N in volts (V).