Electrical Calculators
This tool helps you to calculate amperage quickly. Enter phase number, apparent power in kilovolt-amps, voltage in volts and press Calculate button to get current in amps:
Convert kva to amps
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:
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- I(A) = 1000 × S(kVA) / V(V)
Three phase kVA to amps calculation formula
1.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:
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- I(A) = 1000 × S(kVA) / (√3 × VL-L(V) )
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2.Calculation with 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:
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- I(A) = 1000 × S(kVA) / (3 × VL-N(V) )
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