Electric charge converter
Convert C, mC, µC, Ah and mAh.
This tool lets you convert electric charge between coulombs and battery-related units such as Ah or mAh.
Result
Approximation
Quick explanation
Enter a positive or zero electric charge, then choose the source and target units.
Ampere-hours are common for batteries, but they are a charge unit, not an energy unit.
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Convert energy
For joules, Wh and kWh, use the energy converter.
Additional information
Coulomb and ampere-hour
The coulomb is the reference unit of electric charge. One ampere-hour equals 3600 coulombs.
About batteries
Battery capacity is often stated in Ah or mAh. This value alone does not give the available energy: voltage is also needed.
Accepted values
A charge quantity is zero or positive in this converter.
Local calculation
Values stay in the browser.
Limits and reuse
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