Series and parallel capacitors
Calculate, convert and check circuit values in your browser.
Inputs
Results
- Capacitance
- 0.000002 F
Formula and assumptions
Cparallel = ΣC; Cseries = 1 / Σ(1/C)
Questions, examples and engineering limits
Calculate equivalent capacitance for 2–20 capacitors. Understand series voltage sharing, parallel capacitance and why ratings do not simply add.
Content updated:
How is Series and Parallel Capacitor Calculator calculated?
Use Cp = ΣC; Cs = 1/Σ(1/C). Calculate equivalent capacitance for 2–20 capacitors. Understand series voltage sharing, parallel capacitance and why ratings do not simply add.
Sources: openstax.org [1]
How do I calculate this example: C₁ = C₂ = 10 µF?
parallel: 20 µF; series: 5 µF. This is a calculated example under the model stated above; it is not a measured component specification.
Which units does Series and Parallel Capacitor Calculator use?
pF, nF, µF, mF, F. Convert prefixes before substituting values; keep the input and output units attached to every number.
Sources: openstax.org [1]
Does series connection increase capacitance?
No. For positive ideal capacitors, series capacitance is below the smallest individual value; parallel capacitances add.
Sources: openstax.org [1]
Can I add the voltage ratings of series capacitors?
Not without checking voltage balance. Capacitance tolerances, leakage and transients can put excessive voltage on one capacitor.
Sources: openstax.org [1]
Does this model include ESR and ESL?
No. It computes ideal capacitance only. For ripple current, heating or high-frequency impedance, use capacitor ESR/ESL and frequency data.
Sources: openstax.org [1]
Answers use the stated model and units. Examples are calculated values, not measurements or component ratings.