Convert Milliamperes to Abamperes
Convert Milliamperes (mA) to Abamperes (abA) instantly and accurately.
Conversion Formula
abA = mA × 0.0001
About Milliamperes
The milliampere (mA) equals 10⁻³ A, the everyday unit in consumer electronics and safety standards. Standard LEDs operate at 5-30 mA; USB 2.0 ports supply up to 500 mA; USB-C fast-charging delivers 3 000-5 000 mA. The milliampere is also the clinically important range for electric shock - ventricular fibrillation threshold is around 100 mA, and 1 mA is the threshold of perception. 1 mA = 10⁻³ A = 10³ µA.
About Abamperes
The abampere (abA), also called the biot (Bi), equals exactly 10 A - the current unit of the CGS-EMU (electromagnetic) system. Two long parallel wires each carrying 1 abA and separated by 1 cm experience a force of exactly 2 dyn per centimetre; this definition directly parallels the original 1948 SI definition of the ampere. The abampere appears in nineteenth- and early-twentieth-century electrical engineering literature. 1 abA = 1 Bi = 10 A.
Quick Reference Table
| Milliamperes (mA) | Abamperes (abA) |
|---|---|
| 1 mA | 0.0001 abA |
| 2 mA | 0.0002 abA |
| 5 mA | 0.0005 abA |
| 10 mA | 0.001 abA |
| 25 mA | 0.0025 abA |
| 50 mA | 0.005 abA |
| 100 mA | 0.01 abA |