Convert Femtohenries per metre to Henries per metre
Convert Femtohenries per metre (fH/m) to Henries per metre (H/m) instantly and accurately.
Conversion Formula
H/m = fH/m × 1.000000000e-15
About Femtohenries per metre
The femtohenry per metre (fH/m) equals 10⁻¹⁵ H/m. A theoretical subunit used in precision electromagnetic metrology. Even the extreme diamagnet bismuth (µᵣ = 0.999834) departs from µ₀ by about −207 nH/m - far above the fH/m scale. Primarily a reference unit for quantum EM standard calculations. 1 fH/m = 10⁻¹⁵ H/m.
About Henries per metre
The henry per metre (H/m) is the SI coherent unit of absolute magnetic permeability, equal to 1 kg·m·s⁻²·A⁻². Only the highest-permeability alloys reach this scale: annealed Mu-metal achieves µ ≈ 0.1-0.4 H/m (µᵣ up to 300 000); Supermalloy under optimal conditions approaches µ ≈ 1 H/m (µᵣ ≈ 10⁶). 1 H/m ≈ 7.96 × 10⁵ µ₀.
Quick Reference Table
| Femtohenries per metre (fH/m) | Henries per metre (H/m) |
|---|---|
| 1 fH/m | 1 × 10-15 H/m |
| 2 fH/m | 2 × 10-15 H/m |
| 5 fH/m | 5 × 10-15 H/m |
| 10 fH/m | 1 × 10-14 H/m |
| 25 fH/m | 2.5 × 10-14 H/m |
| 50 fH/m | 5 × 10-14 H/m |
| 100 fH/m | 1 × 10-13 H/m |