Capacitor Charge & Energy Calculator

Stored charge and energy of a capacitor at a given voltage.

Results

Charge—
Energy—

How to use the Capacitor Charge & Energy Calculator

  1. Enter or select: Capacitance, Voltage.
  2. The results (Charge, Energy) are calculated instantly as you type.
  3. Use “Copy link” to share the calculation with the same input values.

Formula

  • Q = CV
  • E = ½CV²