Watts to kVA Calculator
Convert real watts to apparent kVA: kVA = (W / 1000) / PF. Default 2400 W at PF 0.9 gives 2.667 kVA. Informational only.
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How to convert watts to kVA
- Enter real power in watts.
- Enter power factor between 0 and 1.
- Read kVA. Divide watts by 1000 before dividing by PF.
- Current needs voltage on kVA to amps. Nothing is uploaded.
Watts to kVA
kVA from W and PF
| Watts | Real power in watts |
|---|---|
| kVA | (W/1000)/PF apparent power |
| PF | Required on AC loads |
| Default | 2400 W, PF 0.9 → 2.667 kVA |
| kW link | 2400 W is 2.4 kW before PF step |
| Approval | Informational. Not a utility audit. |
Watts through kilowatts
The engine divides watts by 1000 to get kW, then divides by PF for kVA. 2400 W at 0.9 PF is 2.667 kVA.
kW vs kVA entry
If you already think in kilowatts, kW to kVA skips the watts step.
kVA to watts
kVA to watts multiplies kVA, PF, and 1000.
From watts to amps
When PF is unknown but you need current, try watts to amps with voltage.
Limits
Steady snapshot.
The formula runs in this tab. CZNull does not receive the numbers.
Informational only. Not wiring, code, or manufacturer approval. See the disclaimer.
What kVA is 2400 W at PF 0.9?
2.667 kVA. (2400/1000)/0.9 = 2.666...
Why divide by 1000?
kVA uses kilo scale while your input is watts.
Can PF be 1 for a heater?
Yes. Unity PF makes kVA equal kilowatts from watts.
Is this for DC?
kVA is an AC apparent unit. DC power in watts maps to real power only; PF is not used on DC in this model.
Where do I convert kVA back to watts?
On kVA to watts.