mAh to Ah Converter
Convert mAh to Ah: 1 mAh = 0.001 Ah. Formula, worked example, table of common values and unit definitions.
Result5 Ah
1 mAh = 0.001 Ah
5,000 mAh =
5 Ah
Formula
Ah = mAh × 0.001 mAh = Ah × 1,000
Worked example
- 5,000 mAh × 0.001 = 5 Ah
Common values
| mAh | Ah |
|---|---|
| 500 | 0.5 |
| 1,000 | 1 |
| 2,500 | 2.5 |
| 5,000 | 5 |
| 10,000 | 10 |
| 20,000 | 20 |
| 100,000 | 100 |
Unit definitions
| Unit | Equals | What it is |
|---|---|---|
| mAh | 0.001 Ah | Milliampere-hour, a thousandth of an ampere-hour. Phone, power bank and small cell ratings. |
| Ah | 1 Ah | Ampere-hour: one ampere for one hour. Lead-acid, lithium and UPS battery ratings. |
Frequently asked questions
How many Ah are in one mAh?
1 mAh = 0.001 Ah.
What is the formula to convert mAh to Ah?
Ah = mAh × 0.001. To go back, mAh = Ah × 1,000.
Does this tell me how much energy the battery holds?
No. mAh and Ah both measure charge. Energy in Wh needs the nominal voltage: Wh = Ah × V. Use the mAh to Wh calculator for that.
Related
Opposite direction: Ah to mAh
Battery Capacity ConvertermAh to WhWh to mAhConversion Centre