kVA to amps calculator

Enter the phase number, the apparent power in kilovolt-amps, and the voltage in volts, and press the Calculate button to get the current in amps:

kVA
V
A

Single phase kVA to amps calculation formula

The current I in amps is equal to 1000 times the apparent power S in kilovolt-amps, divided by the voltage V in volts:

I(A) =
1000 × S(kVA)V(V)

3-phase kVA to the amps calculation formula

Kilovolt-amps (kVA) to amps (A) calculator and how to calculate.

Calculation with line-to-line voltage

The phase current I in amps (with balanced loads) is equal to 1000 times the apparent power S in kilovolt-amps, divided by the square root of 3 times the line-to-line RMS voltage VL-L in volts:

I(A) =
1000 × S(kVA)√3 × VL-L(V)

Calculation with a line to neutral voltage

The phase current I in amps (with balanced loads) is equal to 1000 times the apparent power S in kilovolt-amps, divided by 3 times the line to neutral RMS voltage VL-N in volts:

I(A) =
1000 × S(kVA)3 × VL-N(V)
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