Convert ampere-hours to milliampere-hours and mAh to Ah instantly. Bidirectional battery capacity converter with formula and common values.
To convert ampere-hours to milliampere-hours, multiply by 1,000. This is the standard conversion for comparing battery capacities across different device categories.
| Ampere-hours (Ah) | Milliampere-hours (mAh) |
|---|---|
| 0.05 | 50 |
| 0.15 | 150 |
| 0.5 | 500 |
| 1 | 1,000 |
| 3.7 | 3,700 |
| 5 | 5,000 |
| 10 | 10,000 |
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One ampere-hour equals exactly 1,000 milliampere-hours (mAh). The milli- prefix denotes one-thousandth of the base unit.
Multiply the capacity in ampere-hours by 1,000. For example, 3.7 Ah × 1,000 = 3,700 mAh.
Milliampere-hours provide a convenient scale for consumer electronics. A 5,000 mAh phone battery sounds more intuitive than 5 Ah for the typical user.
Both measure electric charge (battery capacity). Ah is used for larger batteries (cars, UPS), while mAh is used for smaller ones (phones, earbuds, power banks).
Partially. A 5,000 mAh battery can deliver 500 mA for 10 hours or 1,000 mA for 5 hours, but actual runtime depends on voltage, efficiency, and power draw.