Convert Ampere-hour to Milliampere-hour
Use this free converter to change ampere-hours (Ah) into milliampere-hours (mAh). Ampere-hour and milliampere-hour both measure electric charge. As a quick reference, 1 Ah equals 1000 mAh, and 1 mAh equals 0.001 Ah.
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Milliampere-hour (mAh)
1000
1 Ah = 1000 mAh
Electric Charge conversion table
| Ampere-hour | Milliampere-hour |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1,000 | 1000000 |
How to convert Ampere-hour to Milliampere-hour
Multiply the ampere-hour value by 1000 to get milliampere-hours.
- Enter the number of ampere-hours you want to convert.
- The converter instantly shows the equivalent value in milliampere-hours.
- Worked example: 15 Ah × 1000 = 15000 mAh.
- Use the swap button to reverse the conversion (milliampere-hour to ampere-hour).
About these units
Ampere-hour (Ah)
- Definition
- An ampere-hour (Ah) is a unit of electric charge equal to 3,600 coulombs — the charge transferred by one ampere flowing for one hour.
- History
- It came into widespread use with the commercialisation of lead-acid batteries in the late 19th century.
- Current use
- Ampere-hours rate battery capacity in electric vehicles, uninterruptible power supplies, and solar storage systems.
Milliampere-hour (mAh)
- Definition
- A milliampere-hour (mAh) is one thousandth of an ampere-hour, equal to 3.6 coulombs.
- History
- It became the standard consumer electronics capacity unit as portable devices shrank.
- Current use
- Battery capacity of smartphones, earbuds, and wearables is universally quoted in mAh.
Frequently asked questions
How many milliampere-hours are in a ampere-hour?
There are 1000 mAh in 1 Ah. To convert, multiply the number of ampere-hours by 1000.
How do I convert ampere-hours to milliampere-hours?
Multiply the ampere-hour value by 1000 to get milliampere-hours. For example, 10 Ah = 10000 mAh.
Is this ampere-hour-to-milliampere-hour converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Ampere-hour to other electric charge units
| Unit | 1 Ampere-hour equals |
|---|---|
| Coulomb (C) | 3600 C |
| Millicoulomb (mC) | 3600000 mC |
| Microcoulomb (µC) | 3600000000 µC |
| Nanocoulomb (nC) | 3.6000e+12 nC |
| Milliampere-hour (mAh) | 1000 mAh |