AbraCalc

Energy Stored in a 470 µF Capacitor at 24 V

A 470 µF capacitor charged to 24 V stores approximately 135 millijoules of energy.

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  1. Enter capacitance (c) and voltage (v) in the fields above.
  2. Results update instantly as you type — or click Calculate.
  3. Read your energy and the full breakdown beneath it.

470 µF at 24 V is a common power supply bulk capacitor value in industrial automation and motor drive circuits.

Frequently asked questions

Can a capacitor store as much energy as a battery?
Generally no. A typical 1 F supercapacitor at 2.7 V stores ~3.6 J, while a single AA alkaline battery stores ~15,000 J. Capacitors excel at releasing energy quickly (high peak power), not storing large amounts.
Why does energy scale with V²?
Each additional unit of charge added to a capacitor must be pushed against an increasing voltage, so the energy per coulomb increases linearly. Integrating Q × dV from 0 to V gives ½CV².