Amperes to Milliamperes Converter
1 ampere = 1,000 milliamperes
1 ampere equals 1,000 milliamperes
How to convert amperes to milliamperes
Milli means one thousandth and micro means one millionth of an ampere. Changing the unit does not convert an AC peak reading to RMS or an average reading; preserve the measurement convention.
mA = A × 1000One ampere is 1000 milliamperes, so a single multiplication converts any value.
10,000 mA = 10 × 1000Amperes to milliamperes conversion table
Common values in amperes, converted to milliamperes.
| Amperes (A) | Milliamperes (mA) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
About these units
ampereA
The SI base unit of electric current, defined by fixing the elementary charge.
milliamperemA
One thousandth of an ampere. The usual unit for small electronics.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.