Power Factor Correction Calculator
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, 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.
Worked example (Electrical & Power)
Inputs: a 100 kW load improving power factor from 0.80 to 0.95.
| Result | Value |
|---|---|
| kVAR required | 42.13 kVAR |
| Selected bank | 50 kVAR |
| Per phase | 16.67 kVAR |
Computed live by WorkHive's calculation engine; standard: IEEE 18-2012 | IEEE 1036-2010.
How to use this calculator
- Enter the figures for the duty you are sizing: the worked example below uses a 100 kW load improving power factor from 0.80 to 0.95.
- The calculator returns kVAR required, Selected bank, Per phase, computed per IEEE 18-2012 | IEEE 1036-2010.
- Check the worked example to confirm the method matches how you would do it by hand, then run your own numbers in the interactive tool.
FAQ
What is a power factor correction capacitor kVAR calculator?
The Power Factor Correction Calculator is a free online tool that computes 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's engineering calculators are free to use, no sign-up needed for the tools. 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, no sign-up needed for the calculators.