Enter real power in watts and power factor to calculate apparent power in kVA.
How to Use the Watts to kVA Calculator
The two numbers this needs are usually already on hand — a wattage rating and an assumed or measured power factor — and the calculator shows its work in two explicit steps rather than collapsing them into one line, so you can check the intermediate VA figure along the way.
Why Two Steps, Not One?
This conversion crosses two separate jumps at the same time: real power up to apparent power (divide by PF), and watts up to the kilo-prefixed unit (divide by 1000 again). Doing both by hand invites an order-of-magnitude slip — miss the second division and a result that should read 3.75 kVA comes out looking like 3,750, off by a factor of a thousand.
Step 1 — real to apparent: VA = W ÷ PF
Step 2 — scale to kilo: kVA = VA ÷ 10003,000 W at a power factor of 0.8: step one gives 3,750 VA, step two brings that down to 3.75 kVA. Skip straight to a combined formula and it's easy to lose track of which division you've already applied and which is still pending — walking through it as two steps instead of one line is slower to write but harder to get wrong.
This is the mirror image of the kVA to Watts calculator, run backward — start from the smallest real-power unit, end at the largest apparent-power one, with power factor doing the same job in both directions: describing how much of that apparent capacity actually goes toward useful work.