kW to kVA Calculator
Convert real power (kW) to apparent power (kVA) using power factor (PF). Also calculates kVAR, PF%, and phase angle.
Last updated: 2026-01-17
Inputs
Enter the actual power consumed by the load
Enter power factor between 0.1 and 1.0
Select load type for typical power factor values
Auto calculate enabled (no Calculate button).
📈 Results:
Apparent Power:
0.00 kVA
Real Power:
0.00 kW
Reactive Power:
0.00 kVAR
Power Factor:
0.00
Power Factor %:
0.00%
Power Triangle:
kVA (Apparent Power) = √(kW² + kVAR²)
kW (Real Power) = kVA × cos(φ)
kVAR (Reactive Power) = kVA × sin(φ)
Power Factor = kW / kVA = cos(φ)
kVA (Apparent Power) = √(kW² + kVAR²)
kW (Real Power) = kVA × cos(φ)
kVAR (Reactive Power) = kVA × sin(φ)
Power Factor = kW / kVA = cos(φ)
How to Use the kW to kVA Calculator
- Enter Real Power (kW).
- Enter Power Factor (PF) or select a load type for reference.
- The calculator instantly shows kVA, kVAR, and PF%.
- Use Copy buttons to copy results.
FAQ
Why is kVA higher than kW?
Because kVA includes both real power (kW) and reactive power (kVAR). When PF is less than 1, apparent power increases.
What is kVAR?
kVAR is reactive power required by inductive loads like motors and transformers. It increases current and affects equipment sizing.
Where is kW to kVA used?
This is commonly used in transformer sizing, generator sizing, UPS selection, and power system calculations.
References
- kVA = kW ÷ PF
- kVAR = kW × tan(φ)
- φ = arccos(PF)