ampere-hour to milliampere-hour
Convert ampere-hour (Ah) to milliampere-hour (mAh). Use an editable electric charge converter, conversion formula, and reference table.
1 Ah = 1,000 mAh
Conversion formula
One ampere-hour equals 1,000 milliampere-hour. Multiply your value in ampere-hour by this factor to get milliampere-hour. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 ampere-hour:5 × 1,000 = 5,000 mAh
Conversion table
| ampere-hour (Ah) | milliampere-hour (mAh) |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 1000 | 1,000,000 |
About these measurements
Electric charge can be expressed in coulombs or ampere-hours.
The base reference used here is the coulomb. One ampere-hour is 3,600 base units; one milliampere-hour is 3.6 base units.
Important distinctions
Ampere-hours are charge, not energy. Battery voltage is needed to calculate watt-hours.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert Ah to mAh?
Multiply the quantity in Ah by 1,000. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the milliampere-hour to ampere-hour converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
