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Reactive Power Compensation Calculator
Size capacitor kvar needed to improve power factor.
⚡ Free Online Tool
⚡ Instant Results
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🔒 100% Free Tool
kvar
Compare Your Options And Get Clear Answers
Size capacitor kvar needed to improve power factor.
Reactive Power Compensation Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: kvar = P x (tan phi1 – tan phi2).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Reactive Quick Guide
Typical values for reference.
| PF change | kvar per 100 kW | Saving | Note |
|---|---|---|---|
| 0.70 to 0.95 | 69 | High | Large |
| 0.80 to 0.95 | 42 | Medium | Common |
| 0.85 to 0.95 | 27 | Small | Minor |
| 0.90 to 0.95 | 14 | Tiny | Fine tune |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Reactive Power Compensation Calculator FAQ
Answers to common questions about this calculator.
It cuts current, losses and utility penalties.
It gives a quick estimate of reactive power compensation from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.