Convert Milliamperes to Attoamperes
Convert Milliamperes (mA) to Attoamperes (aA) instantly and accurately.
Conversion Formula
aA = mA × 1000000000000000
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 Attoamperes
The attoampere (aA) equals 10⁻¹⁸ A, the scale of single-electron tunnelling currents in quantum devices. Individual electrons tunnelling through a molecular junction or quantum dot produce average currents of order 1-100 aA when measured at sub-microsecond resolution; cryogenic shot-noise electrometers achieve sub-attoampere sensitivity. 1 aA = 10⁻³ fA = 10⁻¹⁸ A.
Quick Reference Table
| Milliamperes (mA) | Attoamperes (aA) |
|---|---|
| 1 mA | 1 × 1015 aA |
| 2 mA | 2 × 1015 aA |
| 5 mA | 5 × 1015 aA |
| 10 mA | 1 × 1016 aA |
| 25 mA | 2.5 × 1016 aA |
| 50 mA | 5 × 1016 aA |
| 100 mA | 1 × 1017 aA |