Ampere-hours to Coulombs Converter
Convert ampere-hours (Ah) to coulombs (C)
Result
3,600 C
Coulombs
1 Ah = 3,600 C
1 Ah in other units
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How to convert ampere-hours to coulombs
One ampere-hour equals 3,600 coulombs, so multiply the number of ampere-hours by 3,600.
C = Ah × 3,600
1 Ah = 3,600 C · 1 C = 0.0002777778 Ah
Worked example
To convert 5 ampere-hours to coulombs: 5 Ah × 3,600 = 18,000 C.
About ampere-hours (Ah)
An ampere-hour is one ampere for one hour (3,600 C). Inverter and car batteries are rated in Ah.
About coulombs (C)
The coulomb is the SI unit of charge: one ampere flowing for one second.
More conversions
Ampere-hours to other units
Frequently asked questions
How many coulombs are in one ampere-hour?
One ampere-hour equals 3,600 coulombs.
How many ampere-hours are in one coulomb?
One coulomb equals 0.0002777778 ampere-hours.
How do I convert ampere-hours to coulombs?
Use the formula C = Ah × 3,600. For example, 5 Ah × 3,600 = 18,000 C.