Convert Milliampere-hours to Ampere-hours
Convert Milliampere-hours (mAh) to Ampere-hours (Ah) instantly and accurately.
Conversion Formula
Ah = mAh × 0.001
About Milliampere-hours
The milliampere-hour (mAh) equals exactly 3.6 C and is the universal capacity unit for portable-electronics batteries. Smartphone batteries range from 3 000-5 000 mAh; AA alkaline cells deliver ≈2 500 mAh; small lithium coin cells for RTC modules are rated 35-225 mAh. 1 mAh = 3.6 C = 10⁻³ Ah.
About Ampere-hours
The ampere-hour (Ah) equals exactly 3 600 C and is the universal capacity unit for rechargeable batteries. Lead-acid car batteries are rated 40-100 Ah; EV traction packs use 50-300 Ah cells; industrial forklift batteries exceed 1 000 Ah. Multiplying Ah by nominal voltage gives watt-hours of stored energy. 1 Ah = 3 600 C = 1 000 mAh.
Quick Reference Table
| Milliampere-hours (mAh) | Ampere-hours (Ah) |
|---|---|
| 1 mAh | 0.001 Ah |
| 2 mAh | 0.002 Ah |
| 5 mAh | 0.005 Ah |
| 10 mAh | 0.01 Ah |
| 25 mAh | 0.025 Ah |
| 50 mAh | 0.05 Ah |
| 100 mAh | 0.1 Ah |