Electrical
mA·htoA·h
Convert milliampere-hours (mA·h) to ampere-hours (A·h).
Factor1 mA·h = 0.001 A·h
Converter
mA·h
Accepts numbers or expressions, e.g. 150 + 14.7
Result
A·h
Rendered to 6 significant figures.
Formula
Formula
A·h = mA·h × 0.001
Multiply any value in milliampere-hours by 0.001 to obtain the value in ampere-hours.
Worked example
Convert 1000 mA·h to A·h.
- 01Start with 1000 mA·h.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 A·h.
Result1000 mA·h = 1 A·h
Conversion table
| mA·h | A·h |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mA·h to A·h?
1 mA·h equals 0.001 A·h. To convert, multiply the value in milliampere-hours by 0.001.
How do I convert 1 mA·h to A·h?
1 mA·h = 0.001 A·h. For any value, multiply by 0.001.
How do I convert A·h back to mA·h?
Divide by the same factor — or equivalently, multiply by 1000. So 1 A·h = 1000 mA·h.
When would I need to convert milliampere-hour to ampere-hour?
Electric-charge conversions between mA·h and A·h appear in battery capacity specification (A·h, mA·h), electroplating and electrochemistry (coulombs of charge transferred), and capacitor energy calculations. 1 A·h is exactly 3600 C — the conversion is a linear factor and does not depend on voltage, current profile or chemistry.
Is the conversion exact?
Yes. Both mA·h and A·h are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).