Watts to volts calculator

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

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Select current type:

DC AC - Single phase AC - Three phase

Enter power in watts:

W

Enter current in amps:

A

Enter power factor:

Calculate Reset

Voltage results in volts:

V

Watts (W) to volts (V) calculator.

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

DC watts to volts calculation

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

V_(V) = P_(W) / I_(A)

AC single phase watts to volts calculation

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

V_(V) = P_(W) / (PF × I_(A) )

AC three phase watts to volts calculation

Calculation with line-to-line voltage

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

V_L-L(V) = P_(W) / (√3 × PF × I_(A) ) ≈ P_(W) / (1.732 × PF × I_(A) )

Calculation with a line to neutral voltage

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

V_L-N(V) = P_(W) / (3 × PF × I_(A) )