Amperes to Milliamperes Converter
Convert amperes (A) to milliamperes (mA), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an electric current, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 A = 1000 mA
- 1 × 1000 = 1000 mA
How to convert amperes to milliamperes
1 A = 1,000 mA, so multiply by 1,000 to go from amperes to milliamperes. Going the other way, 1 mA = 0.001 A.
mA = A × 1,000 A = mA × 0.001
Worked example:
1 A = 1000 mA 5 × 1000 = 5000 mA
Amperes to milliamperes table
| Amperes | Milliamperes |
|---|---|
| 1 A | 1,000 mA |
| 2 A | 2,000 mA |
| 3 A | 3,000 mA |
| 4 A | 4,000 mA |
| 5 A | 5,000 mA |
| 6 A | 6,000 mA |
| 7 A | 7,000 mA |
| 8 A | 8,000 mA |
| 9 A | 9,000 mA |
| 10 A | 10,000 mA |
| 15 A | 15,000 mA |
| 20 A | 20,000 mA |
| 25 A | 25,000 mA |
| 30 A | 30,000 mA |
| 40 A | 40,000 mA |
| 50 A | 50,000 mA |
| 75 A | 75,000 mA |
| 100 A | 100,000 mA |
| 250 A | 250,000 mA |
| 500 A | 500,000 mA |
| 1000 A | 1,000,000 mA |
About the units
- Amperes (A)
- Amperes, a metric unit. Definition: BIPM SI Brochure.
- Milliamperes (mA)
- Milliamperes, a metric unit. Definition: BIPM SI Brochure (SI prefixes).