Volts (V) to watts (W) calculator.

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

## DC volts to watts calculation formula

Convert voltage in volts to watts with our user-friendly calculator. Understand the relationship between electrical potential and power consumption. Simplify power unit conversions with our Volts to Watts Calculator.

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

*P*_{(W)} = *V*_{(V)} × *I*_{(A)}

### AC single phase volts to watts calculation formula

The 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):

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

### AC three phase volts to watts calculation formula

#### Calculation with line-to-line voltage

The power *P* in watts (W) is equal to the 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):

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

#### Calculation with a line-to-neutral voltage

The 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):

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