Capacitores em Paralelo

C_eq = C₁ + C₂.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

C_eq
0,00000300 F

Formula

paralelo: soma

About this calculator

The capacitors in parallel calculator determines the equivalent capacitance of a circuit with two or more capacitors connected in parallel. In this configuration, all capacitors share the same voltage, and the total charge stored is the sum of individual charges. The calculation is straightforward: the total capacitance is the direct sum of each capacitor's capacitance, following the formula C_eq = C₁ + C₂ + ... + C_n. The tool allows up to 10 values, simplifying the analysis of electronic circuits.

This calculator is useful for students, technicians, and engineers designing or analyzing circuits with parallel capacitors. For example, in power supplies, parallel capacitors increase total capacitance to smooth output voltage. It is also common in filter circuits, where parallel combinations adjust the cutoff frequency. The tool speeds up calculations, avoiding manual errors and enabling quick iteration in projects.

When using the calculator, ensure all capacitance values are in the same unit (microfarad, nanofarad, etc.) for a consistent result. Additionally, the maximum voltage rating of the set is limited by the capacitor with the lowest voltage rating. For parallel capacitors, the equivalent capacitance is always larger than the largest individual capacitance, opposite to series association. Double-check that your circuit is truly parallel, as a wiring mistake can lead to incorrect results.

Frequently asked questions

What is the formula for capacitors in parallel?

The equivalent capacitance is the direct sum of individual capacitances: C_eq = C₁ + C₂ + ... + C_n.

Do all capacitors in parallel have the same voltage?

Yes, all capacitors in parallel share the same voltage.

How does the equivalent capacitance compare to individual ones?

The equivalent capacitance is always larger than the largest individual capacitance.

Can I mix capacitance units (e.g., µF and nF)?

No, all values must be in the same unit for correct calculation. Convert to a common unit before adding.

What is the maximum voltage for capacitors in parallel?

The maximum voltage of the set is equal to the lowest voltage rating among the capacitors.

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