Convert Webers to Femtowebers
Convert Webers (Wb) to Femtowebers (fWb) instantly and accurately.
Conversion Formula
fWb = Wb × 1000000000000000
About Webers
The weber (Wb) is the SI coherent unit of magnetic flux, defined as 1 V·s. A change of 1 Wb per second through a single-turn coil induces an EMF of 1 V. Power transformer cores at 50/60 Hz operate at 0.5-1.5 Wb in large units; a generator stator coil links a few Wb per pole. 1 Wb = 1 V·s = 10⁸ Mx.
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
| Webers (Wb) | Femtowebers (fWb) |
|---|---|
| 1 Wb | 1 × 1015 fWb |
| 2 Wb | 2 × 1015 fWb |
| 5 Wb | 5 × 1015 fWb |
| 10 Wb | 1 × 1016 fWb |
| 25 Wb | 2.5 × 1016 fWb |
| 50 Wb | 5 × 1016 fWb |
| 100 Wb | 1 × 1017 fWb |