## Single phase kVA to Amps calculation formula

I_{(A)} = 1000 × S_{(kVA)} / V_{(V)}

The current **I** in amps (A) is equal to 1000, multiplied by the apparent power **S** in kilovolt-amps (kVA), divided by the voltage **V** in volts (V).

So,

*A = 1000 x kVA / V*

*amps = 1000 x kilovat-amps / volts*

**For example:**

*Power (S) = 2.5kVA*

*Voltage (V) = 110V*

*Phase current (I) = 1000 x 2.5kVA / 110V = 22,73A*

## Three phase kVA to Amps calculation formula

### Line to line voltage

I_{(A)} = 1000 × S_{(kVA)} / (√3 × V_{L-L(V)})

The phase current **I** in amps (with balanced loads) is equal to 1000, multiplied by the apparent power **S** in kilovolt-amps (kVA), divided by the square root of 3, multiplied by the line to line RMS voltage **V**_{L-L} in volts (V).

So,

*A = 1000 x kVA / (√3 x V)*

*amps = 1000 x kilovolt-amps / (√3 x volts)*

**For example:**

*Power (S) = 2.5kVA*

*Voltage (V) = 110V*

*Phase current (I) = 1000 x 2.5kVA / (√3 x 110V) = 13,12A*

### Line to neutral voltage

I_{(A)} = 1000 × S_{(kVA)} / (3 × V_{L-N(V)})

The phase current **I** in amps (with balanced loads) is equal to 1000, multiplied by the apparent power **S** in kilovolt-amps (kVA), divided by 3, multiplied by the line to neutral RMS voltage **V**_{L-N} in volts (V).

So,

*A = 1000 x kVA / (3 x V)*

*amps = 1000 x kilovolt-amps / (3 x volts)*

**For example:**

*Power (S) = 2.5kVA*

*Voltage (V) = 110V*

*Phase current (I) = 1000 x 2.5kVA / (3 x 110V) = 7,576A*