Conversion Formula
$$I_{\text{A}} = I_{\text{mA}} \times 0.001$$
Multiply milliamperes by 0.001 (or divide by 1000) to get amperes.
mA to A Conversion Table
| Milliampere (mA) | Ampere (A) |
|---|---|
| 0.1 | 0.0001 |
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
mA to A in Engineering
Current conversions are fundamental to electrical engineering, power systems, and instrumentation. Milliamps are standard for sensor signals (4-20 mA loops), while kiloamps are used for power system fault currents and large-scale industrial processes.
Milliampere: One thousandth of an ampere. Standard for instrumentation signals (4-20 mA), sensor outputs, and low-power electronics.
Ampere: SI base unit of electric current. Defined by the elementary charge. Fundamental to all electrical engineering calculations.