Milliampere-hour to Coulomb Converter
1 milliampere-hour is exactly 3.6 coulombs. Convert milliampere-hours (mAh) to coulombs (C) below: type a value and the result updates as you type.
mAh to C calculator
Result
Milliampere-hour to Coulomb conversion
1 mAh = 3.6 Cone milliampere-hour in coulombs
1 C ≈ 0.2777777778 mAhone coulomb in milliampere-hours
Milliampere-hour (mAh): One thousandth of an ampere-hour: exactly 3.6 C. Phone and power bank batteries are rated in mAh.
Coulomb (C): SI unit of electric charge: the charge carried by a current of one ampere in one second.
Source:SI Brochure, 9th edition (BIPM, 2019)
How to convert milliampere-hours to coulombs
To convert milliampere-hours to coulombs, multiply the number of milliampere-hours by 3.6.
Formula
C = mAh × 3.6
Examples
- 5 mAh = 5 × 3.6 = 18 C
- 25 mAh = 25 × 3.6 = 90 C
- 100 mAh = 100 × 3.6 = 360 C
Milliampere-hour to Coulomb conversion table
| Milliampere-hour (mAh) | Coulomb (C) |
|---|---|
| 0.1 mAh | 0.36 C |
| 0.5 mAh | 1.8 C |
| 1 mAh | 3.6 C |
| 2 mAh | 7.2 C |
| 3 mAh | 10.8 C |
| 5 mAh | 18 C |
| 10 mAh | 36 C |
| 20 mAh | 72 C |
| 25 mAh | 90 C |
| 50 mAh | 180 C |
| 100 mAh | 360 C |
| 250 mAh | 900 C |
| 500 mAh | 1800 C |
| 1000 mAh | 3600 C |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many coulombs are in one milliampere-hour?
- One milliampere-hour is exactly 3.6 coulombs.
- How do I convert coulombs to milliampere-hours?
- To convert coulombs to milliampere-hours, divide the number of coulombs by 3.6. The formula is mAh = C ÷ 3.6.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 3.6 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a milliampere-hour or a coulomb?
- A milliampere-hour is 3.6 times larger than a coulomb. In other words, a coulomb is about 0.2777777778 of a milliampere-hour.