In series
Ctotal = 1 / (1/C1 + 1/C2 + 1/C3 + ...)
In Parallel
Ctotal = C1 + C2 + C3 + ...
Calculate equivalent capacitance for capacitors in series or parallel. Supports µF, nF, pF. Useful for circuit design, filter tuning, and electronics education.
In a series connection, the total capacitance is given by:
Login
1/C_eq = 1/C₁ + 1/C₂ + ... + 1/CₙKey points:
In a parallel connection, the total capacitance is simply the sum:
C_eq = C₁ + C₂ + ... + CₙKey points:
Note: The calculator handles both cases automatically based on your selection.
The tool supports automatic conversion between common units:
Just enter the value with its unit (e.g., 10µF, 220nF, 100pF), and the calculator will normalize them before computation.
| Field | Use Case | Why It Matters |
|---|---|---|
| Audio Engineering | Designing tone controls or crossover networks | Combining capacitors allows precise frequency response shaping |
| Power Electronics | Decoupling capacitors in switching power supplies | Parallel capacitors reduce impedance at high frequencies |
| RF Circuits | Tuning circuits with variable capacitance | Series combinations allow fine-tuning of resonant frequency |
| Education | Teaching Ohm's Law and Kirchhoff's laws | Visualizing how components combine in circuits |
| DIY Projects | Building simple oscillators or timers | Custom capacitance values enable unique circuit behavior |
For capacitors in series: 1/C_eq = 1/C₁ + 1/C₂ + ... + 1/Cₙ. The total capacitance is always less than the smallest individual capacitor.
For capacitors in parallel: C_eq = C₁ + C₂ + ... + Cₙ. The total capacitance is the sum of all individual values.
Yes! The calculator automatically converts between µF, nF, and pF. Just enter the value with its unit, and it will be normalized before calculation.
In practice, you may not have a capacitor with the exact value needed. By combining smaller ones in series or parallel, you can achieve the desired capacitance for filters, timing circuits, or power supply decoupling.
For capacitors in series: 1/C_eq = 1/C₁ + 1/C₂ + ... + 1/Cₙ. The total capacitance is always less than the smallest individual capacitor.
For capacitors in parallel: C_eq = C₁ + C₂ + ... + Cₙ. The total capacitance is the sum of all individual values.
Yes! The calculator automatically converts between µF, nF, and pF. Just enter the value with its unit, and it will be normalized before calculation.
In practice, you may not have a capacitor with the exact value needed. By combining smaller ones in series or parallel, you can achieve the desired capacitance for filters, timing circuits, or power supply decoupling.
