About the Capacitors in Series Calculator
Total capacitance of capacitors in series and the voltage each one sees.
Also known as: series capacitance, capacitors in series formula.
How to use this calculator
- Enter c1, c2, c3, applied voltage (optional).
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
1/C_total = 1/C₁ + 1/C₂ + …
Worked example
Using the values pre-filled in the calculator above:
- C1 = 100 µF
- C2 = 220 µF
- C3 = 0 µF
- Applied voltage (optional) = 12 V
the calculator returns:
- Total capacitance: 68.75 µF
- In nanofarads: 68,750
- In farads: 0.00006875