## How to convert amps to VA

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

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

## Single phase amps to VA calculation formula

The apparent power

Sin volt-amps (VA) is equal to currentIin amps (A), times the RMS voltageVin volts (V):

S_{(VA)}=I_{(A)}×V_{(V)}So volt-amps are equal to amps times volts:

volt-amps = amps × volts

or

VA = A · V

## Example

What is the apparent power in VA when the current is 12A and the voltage supply is 110V?

Solution:

S= 12A × 110V = 1320VA## 3 phase amps to VA calculation formula

The apparent power

Sin volt-amps (VA) is equal to square root of 3 times currentIin amps (A), times the line to line RMS voltageV_{L-L}in volts (V):

S_{(VA)}=√3 ×I_{(A)}×V_{L-L(V)}So volt-amps are equal to square root of 3 times amps times volts:

kilovolt-amps =

√3 × amps × voltsor

kVA =

√3 × A · V## Example

What is the apparent power in VA when the current is 12A and the voltage supply is 110V?

Solution:

S=√3 × 12A × 110V = 2286VA

## See also