Kilovolt-Amps (kVA) to Kilowatts (kW) Conversion Calculator
Convert kilovolt-amps (kVA) to kilowatts (kW) by entering the apparent power in kVA and the power factor below.
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How to Convert kVA to kW
Kilovolt-amps (kVA) and kilowatts (kW) are both measures of power, but they differ slightly. kVA is a measure of the apparent power, while kW is a measure of the real power. These often are different because of equipment power factor.
Power factor is the ratio between apparent power and real power and is a way to represent the amount of power in equipment that’s used to do real work.
The remainder of the power is called reactive power, expressed in Kilovolt-amps-reactive (kVAR), and is stored by the inductive and capacitive elements of the load.
High reactive power can be undesirable as it requires the electrical system to handle a higher overall power load than is actually used, resulting in inefficiencies, wear, and losses to heat.
Kilovolt-Amps to Kilowatts Formula
To convert from kVA to kW, we must account for the power factor. Use the following formula to convert from kilovolt-amps to kilowatts:
P(kW) = S(kVA) × PF
Thus, the real power P in kilowatts is equal to the apparent power S in kVA times the equipment power factor PF. To convert, simply apply the kVA and power factor to the formula above.
For example, let’s find the real power of a piece of equipment with 50 kVA of apparent power and a power factor of 0.8.
P(kW) = 50 kVA × 0.8
P(kW) = 40 kW
So, in this example, 50 kVA can be converted to 40 kW.
kVA to kW Conversion Chart
The following chart shows kilovolt-amps (kVA) and kilowatt (kW) power conversions for equipment with a power factor of 0.8.
| kVA | kW |
|---|---|
| 6.3 kVA | 5 kW |
| 9.4 kVA | 7.5 kW |
| 12.5 kVA | 10 kW |
| 18.7 kVA | 15 kW |
| 25 kVA | 20 kW |
| 31.3 kVA | 25 kW |
| 37.5 kVA | 30 kW |
| 50 kVA | 40 kW |
| 62.5 kVA | 50 kW |
| 75 kVA | 60 kW |
| 93.8 kVA | 75 kW |
| 100 kVA | 80 kW |
| 125 kVA | 100 kW |
| 156 kVA | 125 kW |
| 187 kVA | 150 kW |
| 219 kVA | 175 kW |
| 250 kVA | 200 kW |
| 312 kVA | 250 kW |
| 375 kVA | 300 kW |
| 438 kVA | 350 kW |
| 500 kVA | 400 kW |
| 625 kVA | 500 kW |
| 750 kVA | 600 kW |
| 875 kVA | 700 kW |
| 1,000 kVA | 800 kW |
| 1,125 kVA | 900 kW |
| 1,250 kVA | 1,000 kW |
| 1,563 kVA | 1,250 kW |
| 1,875 kVA | 1,500 kW |
| 2,188 kVA | 1,750 kW |
| 2,500 kVA | 2,000 kW |
| 2,812 kVA | 2,250 kW |
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