Ampere-hour to Milliampere-hour Converter
Convert ampere-hours to milliampere-hours (Ah to mAh) instantly with this free online electric-charge converter. Enter any value in the Ampere-hour field and get the equivalent in Milliampere-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 Ah = 1000 mAh. To convert ampere-hours to milliampere-hours, multiply your Ampere-hour value by 1000. For example, 10 Ah = 10000 mAh. You can also reverse the calculation: 1 mAh = 0.001 Ah.
Quick conversion table
| Ampere-hour (Ah) | Milliampere-hour (mAh) |
|---|---|
| 1 Ah | 1000 mAh |
| 5 Ah | 5000 mAh |
| 10 Ah | 10000 mAh |
| 25 Ah | 25000 mAh |
| 50 Ah | 50000 mAh |
| 100 Ah | 100000 mAh |
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
Ampere-hour to Milliampere-hour conversion: 1 Ah = 1000 mAh milliampere-hours = ampere-hours × 1000 1 mAh = 0.001 Ah ampere-hours = milliampere-hours × 0.001
Example
Example: Convert 10 Ah to mAh: 10 Ah × 1000 = 10000 mAh So, 10 Ah is about 10000 mAh. To convert back, multiply by 0.001: 10000 mAh × 0.001 = 10 Ah.
How to Use
- Enter the value you want to convert in the Ampere-hour field
- The result in Milliampere-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 ampere-hours to milliampere-hours?
Enter the value in Ampere-hour (Ah) in the 'From' field. The equivalent in Milliampere-hour (mAh) 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 Ah to mAh?
1 Ah = 1000 mAh, so milliampere-hours = ampere-hours × 1000. To convert back, 1 mAh = 0.001 Ah. The full formula and a worked example are shown on this page.
How many milliampere-hours are in one Ampere-hour?
1 Ah = 1000 mAh.
Is this Ampere-hour to Milliampere-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 milliampere-hours back to ampere-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 Ah to mAh 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.