Parallel Capacitor Calculator

This calculator determines the total effective capacitance of any number of capacitors in a parallel configuration.

Enter the capacitance values separated by commas.



Parallel Capacitance Formula

Ctotal = C1 + C2 + C3 +…. + Cn


Units for Capacitance are Farad (F). When entering values above make sure the units are the same – i.e. they should all be one of the following:

  • Farad
  • Millifarad
  • Microfarad
  • Nanofarad
  • Picofarad
  • etc.

Example Calculation

Consider four caps in parallel: 1 µF, 6 µF, 15 µF and 100 µF. The total effective resistance is 122 µF.

If you have two caps – one large and the other small in parallel, the effective capacitance is closer to the larger value. For instance,

1 F and 1000 F in parallel. The effective resistance is 1001 ≈ 1000 F

In the event that the same two capacitors are in series, the effective capacitance is closer to the smaller value.

1 F in series with 1000 F is 0.999 F ≈ 1 F

Related Calculator