Power Factor Correction Calculator
Static · formula-only · worked example computed when this page was built · no live data
The Power Factor Correction Calculator sizes the capacitor bank (kVAR) needed to raise power factor from its present value to a target. Example: for a 100 kW load improving power factor from 0.80 to 0.95, three-phase, kVAR required = 42.13 kVAR, Selected bank = 50 kVAR, Per phase = 16.67 kVAR (per IEEE 18-2012 | IEEE 1036-2010).
How it works
Computed from your inputs per IEEE 18-2012 | IEEE 1036-2010. Anything the worked example does not state uses this calculator's standard default; the interactive version shows every input and lets you change it.
Worked example (Electrical & Power)
Inputs: a 100 kW load improving power factor from 0.80 to 0.95, three-phase.
| Result | Value |
|---|---|
| kVAR required | 42.13 kVAR |
| Selected bank | 50 kVAR |
| Per phase | 16.67 kVAR |
Computed by WorkHive's calculation engine when this page was built; standard: IEEE 18-2012 | IEEE 1036-2010.
How to use this calculator
- Read the worked example. It uses a 100 kW load improving power factor from 0.80 to 0.95, three-phase and shows every number in the method.
- Follow the formula with your own figures: it returns kVAR required, Selected bank, Per phase, computed per IEEE 18-2012 | IEEE 1036-2010.
- To compute interactively, open the Power Factor Correction Calculator inside WorkHive's free Engineering Design suite (link below). It runs the same method with your inputs.
FAQ
What is a power factor correction capacitor kVAR calculator?
The Power Factor Correction Calculator is a free online tool that sizes the capacitor bank (kVAR) needed to raise power factor from its present value to a target. It shows the formula and a fully worked example so you can check the method, not just the number.
How is it calculated?
The result is computed from your inputs following IEEE 18-2012 | IEEE 1036-2010. The worked example on this page shows a real computation with real numbers.
Is the calculator free?
Yes. WorkHive is free: this worked example is open to everyone, and the interactive calculator runs inside the free Engineering Design suite after a free sign-up (your work is saved to your account). WorkHive is a free, offline-first maintenance platform built for Philippine industrial plants.
Run it on your own numbers
Open the interactive Power Factor Correction Calculator in WorkHive. Free, and a free sign-up saves your calculations, BOMs and scope-of-works to your account.