Calculate the energy stored in a capacitor from its capacitance and voltage. The stored energy is available as electrical potential energy.
Enter your values below
Capacitance in microfarads.
Voltage across the capacitor.
How this calculator works
Energy E stored in a capacitor equals half the capacitance times the square of the voltage. Can also be expressed as E = 0.5 * Q * V or E = Q^2 / (2C).
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
