## How to convert VA to amps

Apparent power in volt-amps (VA) to current in amps (A).

You can calculate amps from volt-amps and volts, but you can't convert volt-amps to amps since volt-amps and amps units do not measure the same quantity.

### Single phase VA to amps calculation formula

The current I in amps is equal to the apparent power *S* in volt-amps (VA), divided by the RMS voltage *V* in volts (V):

*I*_{(A)} = *S*_{(VA)}* */ *V*_{(V)}

So amps are equal to volt-amps divided by volts.

amps = VA / volts

or

A = VA / V

#### Example

Question: What is the current in amps when the apparent power is 3000 VA and the voltage supply is 110 volts?

Solution:

*I* = 3000VA / 110V = 27.27A

### 3 phase VA to amps calculation formula

The current I in amps is equal to the apparent power *S* in volt-amps (VA), divided by the square root of 3 times the line to line voltage *V*_{L-L} in volts (V):

*I*_{(A)} = *S*_{(VA)}* */ (*√*3 × *V*_{L-L}_{(V)}* *)

So amps are equal to volt-amps divided by the square root of 3 times volts.

amps = VA / (*√*3 × volts)

or

A = VA / (*√*3 × V)

#### Example

Question: What is the current in amps when the apparent power is 3000 VA and the voltage supply is 110 volts?

Solution:

*I* = 3000VA / (*√*3 × 110V) = 15.746A