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Watts to Volts conversion

Watts (W) to Volts (V) conversion calculator and how to convert.

Enter the power in watts, the current in amps and press the Calculate button:

W
A
V

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 VL-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):

VL-L(V) = P(W) / (√3 * PF * I(A)) ≈ P(W) / (1.732 * PF * I(A))

Calculation with line to neutral voltage

The line to neutral RMS voltage VL-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))

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