Ampere Hour to Coulomb Converter
Convert ampere-hour to coulomb instantly.
Standard electric charge units
Fun comparisons
How to convert ampere-hour to coulomb
Enter your electric charge in ampere-hour and get the equivalent in coulomb instantly. Key reference points: a typical smartphone battery holds 4000 mAh (14,400 coulombs), an AA battery holds about 2500 mAh (9000 C), and a lightning bolt transfers about 5 coulombs.
Ampere-hours are the standard battery capacity unit for cars, solar systems and UPS devices; coulombs are the SI equivalent needed for physics calculations involving current and time.
Need the opposite direction? Convert coulomb to ampere-hour just as easily, or explore all our electric charge conversions.
Common ampere-hour to coulomb conversions
| Ampere Hour (Ah) | Coulomb (C) |
|---|---|
| 1 | 3600 |
| 5 | 18000 |
| 10 | 36000 |
| 25 | 90000 |
| 50 | 18 |
| 100 | 36 |
| 500 | 18 |
| 1000 | 36 |
Frequently asked questions
1 ampere-hour equals 3600 coulomb.
Multiply by 3600. For example, 5 Ah = 18000 C.
A 5000 mAh (5 Ah) phone battery holds 18,000 coulombs of charge.
1 coulomb equals 0.000277778 ampere-hour.
100 ampere-hour equals 36 coulomb.