kVA to kW Calculator
Enter apparent power (kVA) and power factor to calculate real power (kW) instantly.
How do you convert kVA to kW?
Multiply kVA by the power factor: kW = kVA × PF. A 100 kVA generator at 0.8 power factor delivers 100 × 0.8 = 80 kW of real power. Power factor is a number between 0 and 1; when it is unknown, 0.8 is a common assumption for mixed loads.
kVA to kW Conversion Table (kW = kVA × PF)
| Apparent power | PF 0.8 | PF 0.9 | PF 1.0 |
|---|---|---|---|
| 1 kVA | 0.8 kW | 0.9 kW | 1.0 kW |
| 5 kVA | 4.0 kW | 4.5 kW | 5.0 kW |
| 10 kVA | 8.0 kW | 9.0 kW | 10.0 kW |
| 25 kVA | 20.0 kW | 22.5 kW | 25.0 kW |
| 100 kVA | 80.0 kW | 90.0 kW | 100 kW |
| 500 kVA | 400 kW | 450 kW | 500 kW |
Formula
Frequently Asked Questions
To convert kVA (apparent power) to kW (real power), multiply the kVA by the power factor. For example, 100 kVA at a power factor of 0.8 equals 80 kW.
The formula is: kW = kVA × PF, where kW is real power in kilowatts, kVA is apparent power in kilovolt-amps, and PF is the power factor (a number between 0 and 1).
Power factor measures how efficiently electrical power is converted into useful work. It ranges from 0 to 1. Resistive loads (heaters) have a power factor of 1; inductive loads (motors) typically range from 0.7 to 0.95.
At a power factor of 0.8, 100 kVA equals 80 kW. This is calculated as: 100 × 0.8 = 80.