Coulombs to Ampere Hours Converter
Enter a charge in coulombs and instantly get the equivalent in ampere-hours (1 Ah = 3600 C).
Electric Charge Input
Coulombs (C)
Ampere-hours (Ah)
Quick presets (coulombs):
Result
Enter a value on the left to see the result.
Ampere-hours (Ah)
—
Milliampere-hours (mAh)
—
Kiloampere-hours (kAh)
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Common Conversions — Coulombs to Ampere-hours
| Coulombs (C) | Ampere-hours (Ah) | mAh |
|---|---|---|
| 1 C | 0.000278 Ah | 0.278 mAh |
| 360 C | 0.1 Ah | 100 mAh |
| 3,600 C | 1 Ah | 1,000 mAh |
| 18,000 C | 5 Ah | 5,000 mAh |
| 36,000 C | 10 Ah | 10,000 mAh |
| 100,800 C | 28 Ah | 28,000 mAh |
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Summary
Enter a charge in coulombs and instantly get the equivalent in ampere-hours (1 Ah = 3600 C).
How it works
- Enter a charge value in coulombs (C) in the input field.
- The converter divides the coulomb value by 3600 (since 1 Ah = 3600 C).
- The result in ampere-hours (Ah) is displayed instantly.
- Use the swap button to reverse the conversion (Ah to C).
- Copy the result with one click for use in calculations or reports.
Use cases
- Calculate battery capacity: convert measured coulombs to Ah for spec sheets.
- Electrochemistry: convert Faraday-law charge outputs to Ah.
- EV engineering: express drive-cycle charge in Ah for range calculations.
- Electronics lab: log charge delivered during testing in standard Ah units.
- Education: verify unit conversions in physics or electrical engineering coursework.
Frequently Asked Questions
Last updated: 2026-07-01 ·
Reviewed by Nham Vu