How to convert Watts to VA

Watts to VA calculation formula

S(VA) = P(W) / PF

The apparent power S in volt-amps (VA) is equal to the real power P in watts (W), divided by the power factor PF.


VA = W / PF
volt-amp = watt / PF

For example:

Power (P) = 350W
PF = 0,7

Apparent power (S) = 350W / 0,7 = 500VA