Power Factor Correction Calculator
Enter your real power and existing vs target power factor — get the capacitor kVAR needed to correct it, and the kVA saved.
Please note: General guidance only — verify against the current standard before relying on this result. Not a substitute for a licensed electrical design.
Power factor correction
Standard kVAR correction formula.
Capacitor size needed
0 kVAR
Indicative sizing only. Capacitor bank selection, switching stages and harmonics must be confirmed by a licensed designer before purchase or install.
Export this result as a PDF
A clean, branded PDF of your inputs and result — handy for records or sending on.
Need the real numbers signed off?
This tool is a starting point. Get a licensed design or on-site assessment for anything going to certification.
- Quote on the spot — a fixed price before work starts
- Booked in as soon as we can fit you in
- Certificate + asset register within 24h of completion
Switchboard Upgrades
Replace old ceramic-fuse boards with a modern, compliant switchboard built for your load.
Get a quote