Capacitance to Charge Calculator
Calculate electric charge (coulombs) from capacitance and voltage using Q = C × V. Supports pF, nF, μF, mF, and F.
uF
V
ELECTRIC CHARGE
0.0012 C
COULOMBS
1.200e-3 C
FORMULA
Q = C × V
ENERGY (J)
0.0072 J
💡 How to Calculate Charge from Capacitance
Formula
Q = C × V
Where Q = charge (coulombs), C = capacitance (farads), V = voltage (volts)
Example: 100 μF at 12V → Q = 100×10⁻⁶ × 12 = 0.0012 C (1.2 mC)
Where Q = charge (coulombs), C = capacitance (farads), V = voltage (volts)
Example: 100 μF at 12V → Q = 100×10⁻⁶ × 12 = 0.0012 C (1.2 mC)
The energy stored in a capacitor is: E = ½ × C × V². This is useful for understanding how much energy a capacitor can release.
Common Capacitor Sizes
| Use Case | Typical Range |
|---|---|
| Ceramic (filtering) | 1 pF – 100 nF |
| Electrolytic (power supply) | 1 μF – 10,000 μF |
| Supercapacitor (energy storage) | 0.1 F – 3,000 F |
100 μF × 12V = 1.2 mC of charge. Energy stored: ½ × 100μF × 12² = 7.2 mJ.