Milliampere-hours to Ampere-hours Converter
1 milliampere-hour = 0.001 ampere-hours
Charge, not energy. Converting mAh to watt-hours needs the battery voltage as well, so it is not a unit conversion.
1 milliampere-hour equals 0.001 ampere-hours
How to convert milliampere-hours to ampere-hours
Charge is current integrated over time: 1 Ah = 3600 C. Battery mAh is a charge rating; converting it to Wh additionally requires voltage and is not a charge-unit conversion.
Ah = mAh × 0.001One milliampere-hour is 0.001 ampere-hours, so a single multiplication converts any value.
0.01 Ah = 10 × 0.001Charge, not energy. Converting mAh to watt-hours needs the battery voltage as well, so it is not a unit conversion.
Milliampere-hours to ampere-hours conversion table
Common values in milliampere-hours, converted to ampere-hours.
| Milliampere-hours (mAh) | Ampere-hours (Ah) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
About these units
milliampere-hourmAh
The battery capacity unit printed on phone and laptop cells.
ampere-hourAh
The charge delivered by one ampere for one hour: exactly 3,600 coulombs.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.