Convert milliampere-hours to ampere-hours
1 mAh = 0.001 Ah — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001Ah
As a fraction: 1/1000
1 mAh = 0.001 Ah
How to convert milliampere-hours to ampere-hours
Multiply the number of milliampere-hours by 0.001 to get ampere-hours.
The exact factor is 0.001 — as a fraction, 1/1000.
Milliampere-hour: The number on every phone battery.
Ampere-hour: Battery capacity. Multiply by the pack voltage to get watt-hours.
Milliampere-hour to Ampere-hour conversion table
| Milliampere-hours (mAh) | Ampere-hours (Ah) |
|---|---|
| 1 mAh | 0.001 |
| 2 mAh | 0.002 |
| 3 mAh | 0.003 |
| 5 mAh | 0.005 |
| 10 mAh | 0.01 |
| 20 mAh | 0.02 |
| 25 mAh | 0.025 |
| 50 mAh | 0.05 |
| 100 mAh | 0.1 |
| 250 mAh | 0.25 |
| 500 mAh | 0.5 |
| 1000 mAh | 1 |
Ampere-hour to Milliampere-hour conversion table
| Ampere-hours (Ah) | Milliampere-hours (mAh) |
|---|---|
| 1 Ah | 1000 |
| 2 Ah | 2000 |
| 3 Ah | 3000 |
| 5 Ah | 5000 |
| 10 Ah | 10 000 |
| 20 Ah | 20 000 |
| 25 Ah | 25 000 |
| 50 Ah | 50 000 |
| 100 Ah | 100 000 |
| 250 Ah | 250 000 |
| 500 Ah | 500 000 |
| 1000 Ah | 1 000 000 |
Frequently asked
How many ampere-hours are in a milliampere-hour?
One milliampere-hour equals 0.001 ampere-hours (mAh → Ah). That figure is exact, not rounded.
How do you convert milliampere-hours to ampere-hours?
Multiply the number of milliampere-hours by 0.001 to get ampere-hours.
What is 1 Ah in milliampere-hours?
One ampere-hour is 1000 milliampere-hours.
What is 10 mAh in Ah?
10 mAh = 0.01 Ah.
What exactly is a milliampere-hour?
The number on every phone battery.
What exactly is a ampere-hour?
Battery capacity. Multiply by the pack voltage to get watt-hours.