Series and parallel capacitor calculator

Calculate total capacitance in parallel by addition and in series by reciprocal addition.

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Capacitances in one unit

Answer

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Calculate total capacitance in parallel by addition and in series by reciprocal addition.

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Formula and assumptions

Enter all values in the same capacitance unit. Ideal positive capacitors only; no tolerance, leakage, ESR, dielectric or voltage-rating check.

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Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Series and parallel capacitor calculator

Calculate total capacitance in parallel by addition and in series by reciprocal addition.

Enter all values in the same capacitance unit. Ideal positive capacitors only; no tolerance, leakage, ESR, dielectric or voltage-rating check.

Next: Capacitance to charge calculator

A worked example

Example inputs: capacitances in one unit = 2, 2. Parallel capacitance = 4.

Before you use the result

Enter all values in the same capacitance unit. Ideal positive capacitors only; no tolerance, leakage, ESR, dielectric or voltage-rating check.

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ToolOctopus. “Series and parallel capacitor calculator.” Updated 2026-09-26. https://tooloctopus.com/series-and-parallel-capacitor-calculator.

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