Convert Flux quanta to Femtowebers
Convert Flux quanta (Φ₀) to Femtowebers (fWb) instantly and accurately.
Conversion Formula
fWb = Φ₀ × 2.067833848
About Flux quanta
The magnetic flux quantum (Φ₀ = h/2e) equals exactly 2.067833848×10⁻¹⁵ Wb (2019 SI definition). The natural unit of flux in superconductors - flux enters a type-II superconductor in integer multiples of Φ₀ (Abrikosov vortices). Used in SQUID, Josephson junction and quantum computing metrology. 1 Φ₀ ≈ 2.068 fWb.
About Femtowebers
The femtoweber (fWb) equals 10⁻¹⁵ Wb. Used in SQUID magnetometer research to express flux noise spectral density; a typical high-T₂ SQUID has white flux noise of a few µΦ₀/√Hz, corresponding to sub-fWb/√Hz levels. 1 fWb = 10⁻¹⁵ Wb.
Quick Reference Table
| Flux quanta (Φ₀) | Femtowebers (fWb) |
|---|---|
| 1 Φ₀ | 2.06783 fWb |
| 2 Φ₀ | 4.13567 fWb |
| 5 Φ₀ | 10.3392 fWb |
| 10 Φ₀ | 20.6783 fWb |
| 25 Φ₀ | 51.6958 fWb |
| 50 Φ₀ | 103.392 fWb |
| 100 Φ₀ | 206.783 fWb |