A to mA Converter
Convert A to mA: 1 A = 1,000 mA. Formula, worked example, table of common values and unit definitions.
Result500 mA
1 A = 1,000 mA
0.5 A =
500 mA
Formula
mA = A × 1,000 A = mA × 0.001
Worked example
- 0.5 A × 1,000 = 500 mA
Common values
| A | mA |
|---|---|
| 0.001 | 1 |
| 0.01 | 10 |
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1,000 |
| 5 | 5,000 |
| 20 | 20,000 |
Unit definitions
| Unit | Equals | What it is |
|---|---|---|
| A | 1 A | Ampere, the SI unit of electric current. |
| mA | 0.001 A | Milliampere. Control circuits and leakage current. |
Frequently asked questions
How many mA are in one A?
1 A = 1,000 mA.
What is the formula to convert A to mA?
mA = A × 1,000. To go back, A = mA × 0.001.
Is converting amps to milliamps the same as converting amps to watts?
No. Amps and milliamps both measure current, so the conversion is a fixed factor. Watts are power and also need the voltage, so use the amps to watts calculator for that.
Related
Opposite direction: mA to A
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