Convert Attofarads to Femtofarads
Convert Attofarads (aF) to Femtofarads (fF) instantly and accurately.
Conversion Formula
fF = aF × 0.001
About Attofarads
The attofarad (aF) equals 10⁻¹⁸ F, the scale for quantum-mechanical and nanoscale capacitances. Carbon-nanotube transistor gate capacitances are 1-100 aF; single-electron tunnel junctions in Coulomb-blockade devices operate in the attofarad range; scanning-probe microscopy tip-sample junctions at sub-nanometre separation approach 1 aF. 1 aF = 10⁻³ fF = 10⁻¹⁸ F.
About Femtofarads
The femtofarad (fF) equals 10⁻¹⁵ F, the standard unit for transistor gate capacitances in CMOS technology and MEMS sensors. Transistors in 7 nm process nodes have gate capacitances of 0.5-5 fF; MEMS capacitive pressure sensors use sense-gap capacitances of 1-100 fF; integrated-circuit bond-pad parasitics and via coupling are quantified in femtofarads. 1 fF = 10⁻³ pF = 10⁻¹⁵ F.
Quick Reference Table
| Attofarads (aF) | Femtofarads (fF) |
|---|---|
| 1 aF | 0.001 fF |
| 2 aF | 0.002 fF |
| 5 aF | 0.005 fF |
| 10 aF | 0.01 fF |
| 25 aF | 0.025 fF |
| 50 aF | 0.05 fF |
| 100 aF | 0.1 fF |