This tool calculates the total capacitance for any number of capacitors connected in series.

**Formula**

When capacitors are connected in series, the total or equivalent capacitance (**C _{total}**) is less than any individual capacitor’s capacitance in the circuit.

The formula to calculate the total capacitance of n capacitors connected in series is given by the reciprocal of the sum of the reciprocals of their individual capacitances:

**1/C _{total} = 1/C_{1}+ 1/C_{2} + ⋯ +C_{n}**

Or for two capacitors in series, it simplifies to:

**1/C _{total} = 1/C_{1}+ 1/C_{2} **

And **C _{total}** can be found by taking the reciprocal of the sum:

**C _{total} = C_{1}C_{2}/(C_{1}+C_{2})**

**Example Calculation**

Two capacitors with values 1 µF and 3 µF in series gives a total series capacitance value of 0.75 µF.

👉 Try the parallel capacitor calculator

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