# 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:

• 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:

• I(A) = 1000 × S(kVA) / (√3 × VL-L(V) )

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:

• I(A) = 1000 × S(kVA) / (3 × VL-N(V) )