amps to mA Converter
1 A = 1,000 mA. Enter a value. The result updates immediately.
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Accuracy and rounding
For electronics, chargers, sensors, LEDs, and circuit measurements.
Current prefix conversions are exact powers of 1000 within SI notation.
Keep the significant digits supplied by the meter or component specification when displaying mA.
How to convert amps to mA
- Enter the value in amps.
- Select amps as the source unit.
- Select mA as the target unit.
- Read or copy the result.
amps to mA chart
| amps | mA |
|---|---|
| 1 A | 1,000 mA |
| 2 A | 2,000 mA |
| 5 A | 5,000 mA |
| 10 A | 10,000 mA |
| 25 A | 25,000 mA |
| 50 A | 50,000 mA |
| 100 A | 100,000 mA |
Formula
mA = A x 1,000
Example: 1 A = 1,000 mA.
Source
SI ampere definitions and decimal SI prefixes from BIPM and NIST.
Common questions
How do I convert amps to mA?
Enter the amps value in the converter, or multiply by the factor shown in the formula. 1 A = 1,000 mA.
What should I watch out for?
Changing from amps to milliamps changes the prefix only; it does not change the physical current.
Where does this electric current conversion come from?
SI ampere definitions and decimal SI prefixes from BIPM and NIST. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.