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Capacitance Calculator
Capacitance of a parallel plate capacitor from plate area, spacing and dielectric.
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Capacitance
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Capacitance of a parallel plate capacitor from plate area, spacing and dielectric.
Capacitance Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: C = e0 x er x A / d.
How It Works
Key concepts behind this calculator
1
Enter Values
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2
Calculate
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3
Review
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4
Adjust
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Quick Reference Guide
Capacitance Quick Guide
Typical values for reference.
| Area cm2 | Gap mm | er | C nF |
|---|---|---|---|
| 10 | 0.5 | 4.5 | 0.080 nF |
| 100 | 0.5 | 4.5 | 0.797 nF |
| 500 | 0.5 | 4.5 | 3.984 nF |
| 1000 | 0.5 | 4.5 | 7.969 nF |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Capacitance Calculator FAQ
Answers to common questions about this calculator.
The charge stored per volt.
Larger plates, smaller gap or a higher dielectric constant.
C = e0 x er x A / d.
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.