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Electric Charge Converter

Convert between coulombs, ampere-hours and more

About Electric Charge Conversion

Electric charge is a fundamental property of matter. The SI unit is the coulomb (C), defined as the charge transported by one ampere of current in one second. Battery capacity is commonly expressed in milliampere-hours (mAh) or ampere-hours (Ah).

Understanding charge conversions is essential for battery sizing, capacitor selection, and electrochemistry calculations. A typical smartphone battery has 3000-5000 mAh capacity.