Kilowatts (kW) to Volt-amps (VA) Calculator
Calculation Formula
Where:
- S(VA) is the apparent power in volt-amps
- P(kW) is the real power in kilowatts
- PF is the power factor (a dimensionless number between 0 and 1)
How to Convert kW to VA
To convert from kilowatts (kW) to volt-amps (VA), you need to know the power factor (PF) of the electrical system.
The apparent power S in volt-amps (VA) is equal to 1000 times the real power P in kilowatts (kW), divided by the power factor PF:
Example Calculation
What is the apparent power in volt-amps when the real power is 5 kW and the power factor is 0.8?
S = 1000 × 5kW / 0.8 = 6250VA
kW to VA Conversion Table
Real Power (kW) | Power Factor | Apparent Power (VA) |
---|---|---|
1 kW | 0.8 | 1250 VA |
2 kW | 0.9 | 2222 VA |
3 kW | 0.7 | 4286 VA |
5 kW | 0.95 | 5263 VA |
7.5 kW | 0.85 | 8824 VA |
10 kW | 1.0 | 10000 VA |
About Power Factor
The power factor represents the ratio of real power to apparent power in an AC circuit. It ranges from 0 to 1, where 1 indicates all the power is real power (resistive load) and lower values indicate reactive components in the load.
This calculator provides a simple way to convert between real power (kW) and apparent power (VA), which is essential for sizing electrical equipment and understanding power system requirements.