Capacitance Calculator Formula
Understand the math behind the capacitance calculator. Each variable explained with a worked example.
Formulas Used
Capacitance
capacitance = charge / voltageCapacitance (μF)
capacitance_uf = (charge / voltage) * 1e6Variables
| Variable | Description | Default |
|---|---|---|
charge | Charge(C) | 0.001 |
voltage | Voltage(V) | 5 |
How It Works
Capacitance
Capacitance measures the ability of a component to store electric charge per unit voltage.
Formula
C = Q / V
where Q is the stored charge in coulombs and V is the voltage across the capacitor. The unit is the farad (F).
Worked Example
A capacitor stores 0.001 C of charge at 5 V.
charge = 0.001voltage = 5
- 01C = Q / V
- 02C = 0.001 / 5
- 03C = 0.0002 F = 200 μF
Ready to run the numbers?
Open Capacitance Calculator