Milliampere-hour (mAh)
One thousandth of an ampere-hour: exactly 3.6 C. Phone and power bank batteries are rated in mAh.
What is a milliampere-hour?
- Symbol
- mAh
- Quantity
- Electric Charge
- Unit system
- SI-accepted
- Definition
- One thousandth of an ampere-hour: exactly 3.6 C. Phone and power bank batteries are rated in mAh.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
Used to rate phone, power bank, laptop and other small rechargeable batteries.
Milliampere-hour in other electric charge units
- 1 mAh = 3.6 CMilliampere-hour to Coulomb converter
- 1 mAh = 3600 mCMillicoulomb
- 1 mAh = 3600000 µCMicrocoulomb
- 1 mAh = 3600000000 nCNanocoulomb
- 1 mAh = 0.001 AhMilliampere-hour to Ampere-hour converter
- 1 mAh ≈ 2.246943267e+19 eElementary charge
- 1 mAh ≈ 0.00003731137076 F (charge)Faraday (charge)
- 1 mAh = 0.36 abCAbcoulomb
- 1 mAh = 10792528488 statCStatcoulomb
Milliampere-hour quick reference
| Milliampere-hour | Coulomb | Ampere-hour | Millicoulomb |
|---|---|---|---|
| 1 mAh | = 3.6 C | = 0.001 Ah | = 3600 mC |
| 10 mAh | = 36 C | = 0.01 Ah | = 36000 mC |
| 100 mAh | = 360 C | = 0.1 Ah | = 360000 mC |
| 1000 mAh | = 3600 C | = 1 Ah | = 3600000 mC |
Where the milliampere-hour fits
The next smaller electric charge unit is the coulomb (C). 1 mAh = 3.6 C, and 1 C ≈ 0.2777777778 mAh.
The next larger electric charge unit is the abcoulomb (abC). 1 mAh = 0.36 abC, and 1 abC ≈ 2.777777778 mAh.
Frequently asked questions
- How many coulombs are in one milliampere-hour?
- One milliampere-hour = 3.6 C (coulombs).
- How many ampere-hours are in one milliampere-hour?
- One milliampere-hour = 0.001 Ah (ampere-hours).
- How many millicoulombs are in one milliampere-hour?
- One milliampere-hour = 3600 mC (millicoulombs).