Convert Attovolts to Femtovolts
Convert Attovolts (aV) to Femtovolts (fV) instantly and accurately.
Conversion Formula
fV = aV × 0.001
About Attovolts
The attovolt (aV) equals 10⁻¹⁸ V, representing the tiniest detectable voltage signals in quantum electronics. SQUID (Superconducting Quantum Interference Device) magnetometers in flux-locked-loop mode achieve sub-attovolt-equivalent noise floors; theoretical calculations of vacuum fluctuations in nanoscale Josephson junctions reference the attovolt range. 1 aV = 10⁻00b3 fV = 10⁻¹⁸ V.
About Femtovolts
The femtovolt (fV) equals 10⁻¹⁵ V, at the threshold of the most sensitive voltage amplifiers ever built. Cryogenic SQUID amplifiers for neutrino-mass experiments and dark-matter searches operate near 1 fV/√Hz noise levels; Josephson-voltage-standard arrays show thermal voltage noise of a few femtovolts at millikelvin temperatures. 1 fV = 10⁻00b3 pV = 10³ aV.
Quick Reference Table
| Attovolts (aV) | Femtovolts (fV) |
|---|---|
| 1 aV | 0.001 fV |
| 2 aV | 0.002 fV |
| 5 aV | 0.005 fV |
| 10 aV | 0.01 fV |
| 25 aV | 0.025 fV |
| 50 aV | 0.05 fV |
| 100 aV | 0.1 fV |