Enter apparent power (kVA) and power factor to calculate real power in watts (W).
How to Use the kVA to Watts Calculator
Apparent power in kVA and power factor as a decimal — the same two fields as the kVA to kW calculator, just landing in watts instead of kilowatts.
W = kVA × 1000 × PF5 kVA at 0.8 power factor is 4,000 W, which is exactly the 4 kW the kVA to kW calculator would give you for the same inputs — this isn't a different calculation wearing a different unit, it's the identical relationship with an extra ×1000 tacked on. No reason to pretend otherwise.
The reason both versions exist is scale, not physics. Facility- and generator-level real power gets talked about in kW because the numbers involved — tens, hundreds, sometimes thousands — stay readable that way. Drop down to a single motor, appliance, or electronic device and watts becomes the more natural unit: a 400 W space heater or a 65 W laptop charger reads cleanly, where "0.4 kW" and "0.065 kW" are technically correct but not how anyone actually talks about small loads.
Same power factor logic applies here as everywhere else in this batch: PF sits between 0 and 1, a purely resistive load hits 1.0, and anything with a motor or transformer in it typically runs somewhat lower. Get the power factor wrong and the watt figure is wrong by the same proportion — there's no rounding this one away.
If the number you actually have is already in kW, jump to the kVA to kW calculator instead — same inputs, same math, just skipping the unnecessary ×1000 round trip.