Convert Coulombs to Ampere-hours
1 coulomb = 0.00027777778 ampere-hours. Multiply the number of coulombs by 0.000277777777778.
Coulombs to Ampere-hours table
| Coulombs | Ampere-hours |
|---|---|
| 1 C | 0.00027777778 Ah |
| 2 C | 0.00055555556 Ah |
| 3 C | 0.00083333333 Ah |
| 4 C | 0.0011111111 Ah |
| 5 C | 0.0013888889 Ah |
| 10 C | 0.0027777778 Ah |
| 20 C | 0.0055555556 Ah |
| 25 C | 0.0069444444 Ah |
| 50 C | 0.013888889 Ah |
| 100 C | 0.027777778 Ah |
| 500 C | 0.13888889 Ah |
| 1000 C | 0.27777778 Ah |
About these units
The coulomb (C) is an SI base or derived unit of electric charge.
The ampere-hour (Ah) is a specialist or regional unit of electric charge, equal to 3,600 coulombs.
Going the other way, 1 ampere-hour = 3,600 coulombs. Battery capacity in milliamp-hours is a charge measurement. Convert it to coulombs, faradays or elementary charges — useful when comparing power banks and cells.
Frequently asked
- How many ampere-hours are in a coulomb?
- 1 coulomb = 0.00027777778 ampere-hours.
- How do you convert coulombs to ampere-hours?
- Multiply the number of coulombs by 0.000277777777778.
- What is 10 C in Ah?
- 10 C = 0.0027777778 Ah.