Volts (V) to watts (W) calculator and formulas

**How to calculate :-** Enter the voltage in volts, current in amps and press the *Calculate* button to get the power in watts:

The power *P* in watts (W) is equal to the voltage *V* in volts (V), times the current *I* in amps (A):

*P*_{(W)} = *V*_{(V)} × *I*_{(A)}

The power *P* in watts (W) is equal to the power factor *PF* times the phase current *I* in amps (A), times the RMS voltage *V* in volts (V):

*P*_{(W)} = *PF* × *I*_{(A)} × *V*_{(V)}

The power *P* in watts (W) is equal to square root of 3 times the power factor *PF* times the phase current *I* in amps (A), times the line to line RMS voltage *V*_{L-L} in volts (V):

*P*_{(W)} = *√*3 × *PF* × *I*_{(A)} × *V*_{L-L(V)}

≈ 1.732 × *PF* × *I*_{(A)} × *V*_{L-L(V)}

The power *P* in watts (W) is equal to 3 times the power factor *PF* times the phase current *I* in amps (A), times the line to neutral RMS voltage *V*_{L-N} in volts (V):

*P*_{(W)} = 3 × *PF* × *I*_{(A)} × *V*_{L-N(V)}