The real power P in watts (W) is equal to 1000 times the apparent power S in kilovolt-amps (kVA), times the power factor PF:
P(W) = 1000 × S(kVA) × PF
So watts are equal to 1000 times kilovolt-amps times the power factor.
watts = 1000 × kilovolt-amps × PF
W = 1000 × kVA × PF
What is the real power in watts when the apparent power is 3 kVA and the power factor is 0.8?
P = 1000 × 3kVA × 0.8 = 2400W