kW to kVA 3 Phase Calculator
Convert kW to kVA for 3 phase design workflow using power factor. Use this quick calculator to get apparent power before moving to current and breaker sizing.
This is a specialized version of the kW to kVA Calculator.
Quick Calculator
Quick: kW and PF presets. Advanced: PF band drives apparent kVA before you multiply by √3·V for balanced line current.
About this calculator
Focused balanced three-phase conversion from real kW to apparent kVA using your PF before you jump to line current tools. For the full single/three workflow and reference tables, use the main kW to kVA calculator or the power calculator hub.
Result
Apparent power: 11.76 kVA
Default: 10 kW @ PF 0.85 (balanced three-phase workflow). kVA = kW ÷ PF
Engineering disclaimer
This tool provides preliminary screening estimates only. Final design, selection, and compliance must be validated with applicable standards, manufacturer data, and review by a qualified professional.
Need more advanced calculations?
Open Full Calculator →Advanced Result Explanation and Next Step
This quick conversion is the first stage of a 3-phase sizing workflow. For advanced design, use measured PF and verify with current, cable, and protection checks.
Related tools: move to downstream sizing when kVA is fixed.
kVA to amps, transformer size calculator, and breaker size calculator.
Formula
kVA = kW / Power Factor
In 3 phase projects, convert kW to kVA first so downstream current, breaker, and cable calculations are based on apparent power.
Example
- 10 kW at PF 0.80 -> 12.5 kVA (3-phase workflow)
- 45 kW at PF 0.90 -> 50.0 kVA (3-phase workflow)
FAQ
What is the formula for kW to kVA in 3 phase workflow?
Use kVA = kW / PF, then continue with kVA to amps and protection sizing tools.
Why is power factor required?
Power factor defines the relation between real and apparent power, so it is essential for accurate conversion.
What power factor should I use?
Use measured PF when available; otherwise apply an engineering estimate based on your load profile.