kW to kVA Calculator
Convert real power in kilowatts to apparent power in kVA: kVA = kW / PF. Default 5 kW at power factor 0.9 gives 5.556 kVA. Informational only.
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How to convert kW to kVA
- Enter real power in kilowatts.
- Enter power factor between 0 and 1. Default is 0.9.
- Read kVA. Lower PF raises kVA for the same kW.
- Current from kVA needs voltage on the kVA to amps page. Nothing is uploaded.
kW to kVA
kVA = kW / PF
| Real power | kW, useful work component |
|---|---|
| Apparent power | kVA, volts times amps scale |
| Power factor | Ratio of kW to kVA on AC loads |
| Default | 5 kW / 0.9 ≈ 5.556 kVA |
| Unity PF | PF = 1 makes kVA equal kW |
| Approval | Informational. Not a utility bill. |
Real vs apparent
kVA = kW / PF. Real power does work. Apparent power is what V×I implies before phase angle. PF 0.9 is a common motor-like placeholder, not a measured value unless you typed a measurement.
kVA back to kW
Multiply kVA by PF on kVA to kW when you start from apparent power.
Current from kVA
With voltage known, kVA to amps gives line current. Three-phase uses √3 in the engine.
Watts path
Smaller loads in watts use watts to kVA instead of kilowatts.
Limits
Steady AC snapshot.
The formula runs in this tab. CZNull does not receive the numbers.
Informational only. Not wiring, code, or manufacturer approval. See the disclaimer.