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Capacitor Energy Calculator
Capacitor stored energy and RC time constant.
Inputs
Enter your values below.
Result
Your answer appears here.
Enter values and press Calculate — the result appears here.
How it works
The formula behind this calculator.
C_total (series) = 1 / (1/C1 + 1/C2 + ...); C_total (parallel) = C1 + C2 + ...
- C1, C2, ...
- Capacitance values
Capacitors in series add like resistors in parallel (and vice versa). Polarized capacitors (electrolytic, tantalum) must observe polarity.
Example: Two 10 µF in series: 5 µF; in parallel: 20 µF
Ref: Fundamental capacitors in series and parallel
Tips
- 💡 1 farad is huge. Most circuits use µF, nF, or pF. 1 F = 1,000,000 µF = 1,000,000,000 nF = 1,000,000,000,000 pF.
- 💡 Electrolytic capacitors are polarized — connect + and − the right way or they can pop.