Milliampere-hour to Ampere-hour Converter
Convert milliampere-hours to ampere-hours (mAh to Ah) instantly with this free online electric-charge converter. Enter any value in the Milliampere-hour field and get the equivalent in Ampere-hour immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 mAh = 0.001 Ah. To convert milliampere-hours to ampere-hours, multiply your Milliampere-hour value by 0.001. For example, 10 mAh = 0.01 Ah. You can also reverse the calculation: 1 Ah = 1000 mAh.
Quick conversion table
| Milliampere-hour (mAh) | Ampere-hour (Ah) |
|---|---|
| 1 mAh | 0.001 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 |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the electric-charge category.
Formula
Milliampere-hour to Ampere-hour conversion: 1 mAh = 0.001 Ah ampere-hours = milliampere-hours × 0.001 1 Ah = 1000 mAh milliampere-hours = ampere-hours × 1000
Example
Example: Convert 10 mAh to Ah: 10 mAh × 0.001 = 0.01 Ah So, 10 mAh is about 0.01 Ah. To convert back, multiply by 1000: 0.01 Ah × 1000 = 10 mAh.
How to Use
- Enter the value you want to convert in the Milliampere-hour field
- The result in Ampere-hour appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert milliampere-hours to ampere-hours?
Enter the value in Milliampere-hour (mAh) in the 'From' field. The equivalent in Ampere-hour (Ah) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert mAh to Ah?
1 mAh = 0.001 Ah, so ampere-hours = milliampere-hours × 0.001. To convert back, 1 Ah = 1000 mAh. The full formula and a worked example are shown on this page.
How many ampere-hours are in one Milliampere-hour?
1 mAh = 0.001 Ah.
Is this Milliampere-hour to Ampere-hour converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert ampere-hours back to milliampere-hours?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other electric-charge unit for either field.
How accurate is the mAh to Ah conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.