Volts to Watts Calculator

Volts (V) to watts (W) calculator.

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Select current type: DC AC - Single phase AC - Three phase

Enter voltage in volts:

Enter current in amps:

Enter power factor:

Calculate Reset

Power result in watts:

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)