Ampere-Hours to Coulombs converter (Ah to C)
Convert Ampere-Hours (Ah) to Coulombs (C) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Convert Coulombs to Ampere-Hours ►
How to convert ampere-hours to coulombs
To convert ampere-hours (Ah) to coulombs (C), multiply the value by 3,600.
C = Ah × 3,600
One ampere-hour equals 3,600 coulombs, since 1 ampere flowing for 3,600 seconds (1 hour) transfers 3,600 coulombs of charge. This unit is widely used in battery specifications.
Example: Convert 2 Ah to C:
2 × 3,600 = 7,200 C
What is a Ampere-Hours?
The Ampere-Hours (Ah) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Coulombs?
The Coulombs (C) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts electric charge from Ampere-Hours into Coulombs. One Ah equals 3600 C.
Ampere-Hours to Coulombs conversion table
Common Ah values and the matching C result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Ampere-Hours (Ah) | Coulombs (C) |
|---|---|
| 0.001 Ah | 3.6 C |
| 0.01 Ah | 36 C |
| 0.1 Ah | 360 C |
| 0.5 Ah | 1800 C |
| 1 Ah | 3600 C |
| 2 Ah | 7200 C |
| 5 Ah | 18000 C |
| 10 Ah | 36000 C |
| 100 Ah | 360000 C |
How this calculator works
The form on this page is a Ampere-Hours-to-Coulombs converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the C result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many C are in 1 Ah?
1 Ah = 3600 C.
How do I convert Ampere-Hours to Coulombs?
One ampere-hour equals 3,600 coulombs, since 1 ampere flowing for 3,600 seconds (1 hour) transfers 3,600 coulombs of charge. This unit is widely used in battery specifications.
Is this Ah to C converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.