Charge Converter
Convert electric charge between coulomb, ampere-hour, faraday, elementary charge, and more.
Electric Charge Unit Converter
Convert electric charge between coulombs, ampere-hours, faradays, elementary charges, and other SI and CGS units. This tool normalizes all values through the coulomb (C) as the base SI unit, giving accurate results for physics, chemistry, and electrical engineering calculations.
Common Charge Units
The coulomb (C) is the SI unit of electric charge. One ampere-hour (A·h) equals 3600 coulombs, which is the standard unit for battery capacity. The faraday represents the charge of one mole of electrons (96485.33 C), while the elementary charge ($e$) is the charge of a single proton or electron.
Frequently Asked Questions
How do I convert ampere-hours to coulombs?
Multiply ampere-hours by 3600 to get coulombs. For example, a 2 A·h battery stores 7200 C of charge. Use this tool to convert instantly between any charge units.
What is the difference between coulomb and ampere-second?
They are equivalent. One ampere-second (A·s) equals one coulomb (C). Both represent the amount of charge transferred when one ampere of current flows for one second.
What is a faraday?
A faraday is the electric charge carried by one mole of electrons, approximately 96485 coulombs. It is commonly used in electrochemistry calculations.
What is an elementary charge?
The elementary charge ($e$) is the electric charge of a single proton or the negative of an electron's charge, approximately $1.602 \times 10^{-19}$ coulombs.
For related conversions, try our Electric Current Converter and Energy Converter.
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