kW to VA calculator

kW to VA Calculator | Real Power to Apparent Power Conversion

Kilowatts (kW) to Volt-amps (VA) Calculator

Apparent power in volt-amps:

Calculation Formula

S(VA) = 1000 × P(kW) / PF

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