Amps to VA calculator

Enter the current in amps (A), voltage in volts (V), then press the Calculate button to get the result in volt-amps (VA).

Single phase Amps to VA calculation

Current in amps (A)
Voltage in volts (V)

S(VA) = I(A) × V(V)

The apparent power S in volt-amps (VA) is equal to the phase current I in amps (A), multiplied by the RMS voltage V in volts (V).

3 phase Amps to VA calculation

Line to line voltage

Current in amps (A)
Voltage in volts (V)

S(VA) = √3 × I(A) × VL-L(V)

The apparent power S in volt-amps (VA) is equal to square root of 3, multiplied by the phase current I in amps (A), multiplied by the line to line RMS voltage VL-L in volts (V).

Line to neutral voltage

Current in amps (A)
Voltage in volts (V)

S(VA) = 3 × I(A) × VL-N(V) 

The apparent power S in volt-amps (VA) is equal to 3, multiplied by the phase current I in amps (A), multiplied by the line to neutral RMS voltage VL-N in volts (V).

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