How it works
Charge Q=CV; stored energy E=½CV². Convert microfarads to farads by dividing by 1,000,000.
Input definitions
- Capacitance (µF)
- Enter the value in the labeled unit.
- Voltage (V)
- Enter the value in the labeled unit.
A worked example
- Capacitance (µF)
- 1000
- Voltage (V)
- 12
Assumptions & limits
Ideal capacitor at the entered voltage. No leakage, equivalent series resistance, dielectric limitations or discharge planning.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-17. Content checked against the stated method and examples. Our verification approach.
Common questions
Does capacitance alone tell me how much energy is stored?
No. Stored energy depends on capacitance and the square of voltage. Doubling voltage at the same capacitance quadruples the ideal stored energy.
How does Capacitor stored energy and charge work?
Charge Q=CV; stored energy E=½CV². Convert microfarads to farads by dividing by 1,000,000.
What are the limits of Capacitor stored energy and charge?
Ideal capacitor at the entered voltage. No leakage, equivalent series resistance, dielectric limitations or discharge planning.