A volt-ampere (VA) is the voltage times the current feeding an electrical load. A kilovolt-ampere (kVA) is 1000 volt-amperes. A volt-ampere (VA) is the unit used for the apparent power in an electrical circuit, equal to the product of root-mean-square (RMS) of one volt. It is an equivalent to watts for non-reactive circuits.
I*V*1.732 for three phase
I*V for one phase