Capacitor Calculator
Add as many capacitors as you need, define whether they are in series or in parallel and get the total equivalent capacitance.
Enter at least one capacitance value greater than zero to calculate the equivalent.
Equivalent--
Free tool
Seriess and Parallel Capacitor Calculator
Enter several capacitance values, choose the connection type and get the equivalent capacitance from a much cleaner interface.
Tools
Calculate the equivalent capacitance of a capacitor network
The calculator lets you work with several capacitance values and different units, in series or in parallel, to estimate the behaviour of the network quickly.
Series or parallel
The total capacitance changes a lot depending on the connection. In parallel it increases; in series it always stays below the smallest capacitor.
Parallel connection
- La capacidad equivalente es la suma directa de todas las capacidades.
- Muy util cuando quieres aumentar almacenamiento total.
Series connection
- Se usa cuando necesitas soportar mas tension o ajustar un valor equivalente concreto.
- La formula se basa en la suma de inversos.
Quick guide
How to choose between capacitors in series and in parallel
A parallel connection increases the total capacitance and is usually the most direct option when you want more stored energy or better decoupling. A series connection is used to handle more voltage or reach a specific equivalent value.
Lectura rapida
- Parallel: la capacidad equivalente crece con cada nuevo condensador.
- Series: el equivalente siempre es menor que el valor mas bajo del conjunto.
- Conviene unificar unidades antes de interpretar el resultado.
- La ESR, el tipo dielectric y la tension nominal siguen importando en el circuito real.
Parallel
The total capacitance is the direct sum of each capacitor.
Ceq = C1 + C2 + ... + CnSeries
The inverse of the equivalent is obtained by summing the individual inverses.
1 / Ceq = 1/C1 + 1/C2 + ... + 1/CnMore tools
More useful electronics calculators
If you are reviewing components or sizing a circuit, here are other related tools so you can keep working without leaving the RobotUNO environment.
Resistor calculatorIdentify color bands and calculate series or parallel equivalents.
Ohm's law calculatorCalculate voltage, current and resistance in one place.
Voltage divider calculatorGet the output voltage when sizing resistors in series.
Current divider calculatorCheck how current splits across parallel branches.
Seriess and parallel capacitor calculatorCalculate equivalent capacitance with a clearer interface.
Op-amp gain calculatorSize the feedback network for inverting and non-inverting configurations.
555 timer calculatorCalculate charge and discharge times for NE555 designs.
RC/RL filter bandwidth calculatorCheck cutoff frequency or bandwidth for the selected filter.
FAQ
Frequently asked questions
A short reference for the usual questions when combining capacitors in series or in parallel.
What does this tool calculate?
It calculates the equivalent capacitance of several capacitors connected in series or in parallel.
Can I use different units?
Yes. You can enter farads, millifarads, microfarads, nanofarads or picofarads and the tool normalises everything before the calculation.
Is the equivalent value enough to finalise a design?
Not always. It is also worth checking ESR, rated voltage, dielectric type and tolerances of the chosen capacitors.
Is the calculator free?
Yes. You can use it online without registering.
Next step
Need help with the electronic design of your project?
If you are developing a product and need support with electronics, PCBs, firmware or technical validation, we can review your case and point you in the right direction.