Convert Attofarads to Farads
Convert Attofarads (aF) to Farads (F) instantly and accurately.
Conversion Formula
F = aF × 1.000000000e-18
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 Farads
The farad (F) is the SI derived unit of electrical capacitance, equal to 1 coulomb per volt (1 C/V = 1 A²·s⁴·kg⁻¹·m⁻²), named after Michael Faraday (1791-1867). One farad is impractically large for classical components: electric double-layer supercapacitors (EDLC) are the only practical devices in the farad range, from 1 F coin cells to 3 000 F modules used in regenerative braking. 1 F = 10³ mF = 10⁶ µF.
Quick Reference Table
| Attofarads (aF) | Farads (F) |
|---|---|
| 1 aF | 1 × 10-18 F |
| 2 aF | 2 × 10-18 F |
| 5 aF | 5 × 10-18 F |
| 10 aF | 1 × 10-17 F |
| 25 aF | 2.5 × 10-17 F |
| 50 aF | 5 × 10-17 F |
| 100 aF | 1 × 10-16 F |