kVA to kW converter
Convert kVA to kW, or kW to kVA, for generators, UPS units and transformers.
kW = kVA × power factor. Uses only the numbers you enter.
kVA to kW table
| Apparent power | Power factor 0.8 | 0.9 | 1 |
|---|---|---|---|
| 5 kVA | 4 kW | 4.5 kW | 5 kW |
| 10 kVA | 8 kW | 9 kW | 10 kW |
| 20 kVA | 16 kW | 18 kW | 20 kW |
| 50 kVA | 40 kW | 45 kW | 50 kW |
| 100 kVA | 80 kW | 90 kW | 100 kW |
kVA and kW
kVA is apparent power: the voltage times the current. kW is real power: the part that does work, such as heat or movement. The power factor is the share of the apparent power that is real, between 0 and 1. For things that only heat, it is 1 and kVA equals kW. For motors it is lower.
Generators and UPS units are often rated in kVA. To find what they can run in kW, multiply by the power factor on the rating plate.