Convert Microamperes to Femtoamperes
Convert Microamperes (µA) to Femtoamperes (fA) instantly and accurately.
Conversion Formula
fA = µA × 1000000000
About Microamperes
The microampere (µA) equals 10⁻⁶ A, common in low-power sensor circuits, analogue signal conditioning, and bioelectrical measurement. Surface ECG electrodes record body currents of 1-100 µA; a 1 mW signal at 5 V draws 200 µA; modern low-power microcontrollers sleep at 1-10 µA, enabling coin-cell operation for months or years. 1 µA = 10⁻³ mA = 10³ nA.
About Femtoamperes
The femtoampere (fA) equals 10⁻¹⁵ A, encountered in patch-clamp background noise, advanced CMOS sub-threshold leakage, and electrochemical scanning probe measurements. Individual ion channels in biological membranes produce baseline noise currents of a few femtoamperes; the off-state leakage of a modern 3 nm transistor is well below 1 fA per device. 1 fA = 10⁻³ pA = 10³ aA.
Quick Reference Table
| Microamperes (µA) | Femtoamperes (fA) |
|---|---|
| 1 µA | 1000000000 fA |
| 2 µA | 2 × 109 fA |
| 5 µA | 5 × 109 fA |
| 10 µA | 1 × 1010 fA |
| 25 µA | 2.5 × 1010 fA |
| 50 µA | 5 × 1010 fA |
| 100 µA | 1 × 1011 fA |