Milliampere to Ampere Converter
Convert milliamperes to amperes (mA to A) instantly with this free online electric-current converter. Enter any value in the Milliampere field and get the equivalent in Ampere 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 mA = 0.001 A. To convert milliamperes to amperes, multiply your Milliampere value by 0.001. For example, 10 mA = 0.01 A. You can also reverse the calculation: 1 A = 1000 mA.
Quick conversion table
| Milliampere (mA) | Ampere (A) |
|---|---|
| 1 mA | 0.001 A |
| 5 mA | 0.005 A |
| 10 mA | 0.01 A |
| 25 mA | 0.025 A |
| 50 mA | 0.05 A |
| 100 mA | 0.1 A |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the electric-current category.
Formula
Milliampere to Ampere conversion: 1 mA = 0.001 A amperes = milliamperes × 0.001 1 A = 1000 mA milliamperes = amperes × 1000
Example
Example: Convert 10 mA to A: 10 mA × 0.001 = 0.01 A So, 10 mA is about 0.01 A. To convert back, multiply by 1000: 0.01 A × 1000 = 10 mA.
How to Use
- Enter the value you want to convert in the Milliampere field
- The result in Ampere 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 milliamperes to amperes?
Enter the value in Milliampere (mA) in the 'From' field. The equivalent in Ampere (A) 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 mA to A?
1 mA = 0.001 A, so amperes = milliamperes × 0.001. To convert back, 1 A = 1000 mA. The full formula and a worked example are shown on this page.
How many amperes are in one Milliampere?
1 mA = 0.001 A.
Is this Milliampere to Ampere 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 amperes back to milliamperes?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other electric-current unit for either field.
How accurate is the mA to A 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.