AbraCalc

Energy Stored in a 10 µF Capacitor at 50 V

A 10 µF capacitor charged to 50 V stores 12.5 millijoules of energy.

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How to use this tool

  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.

A 10 µF capacitor at 50 V is typical in SMPS circuits and high-voltage analog signal conditioning stages.

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.