Convert Femtohenries per metre to Millihenries per metre
Convert Femtohenries per metre (fH/m) to Millihenries per metre (mH/m) instantly and accurately.
Conversion Formula
mH/m = fH/m × 1.000000000e-12
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 Millihenries per metre
The millihenry per metre (mH/m) equals 10⁻³ H/m ≈ 796 µ₀. The range for soft magnetic materials: grain-oriented silicon steel (CRGO) has µ ≈ 1-10 mH/m at working flux densities (µᵣ ≈ 1 000-8 000); MnZn power ferrites are 3-10 mH/m; nickel-iron alloys (Permalloy 78) reach 25-100 mH/m at low fields. 1 mH/m = 10⁻³ H/m.
Quick Reference Table
| Femtohenries per metre (fH/m) | Millihenries per metre (mH/m) |
|---|---|
| 1 fH/m | 1 × 10-12 mH/m |
| 2 fH/m | 2 × 10-12 mH/m |
| 5 fH/m | 5 × 10-12 mH/m |
| 10 fH/m | 1 × 10-11 mH/m |
| 25 fH/m | 2.5 × 10-11 mH/m |
| 50 fH/m | 5 × 10-11 mH/m |
| 100 fH/m | 1 × 10-10 mH/m |