Convert Millihenries per metre to Femtohenries per metre

Convert Millihenries per metre (mH/m) to Femtohenries per metre (fH/m) instantly and accurately.

Millihenries per metre (mH/m)
Femtohenries per metre (fH/m)

Conversion Formula

fH/m = mH/m × 1000000000000

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.

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.

Quick Reference Table

Millihenries per metre (mH/m)Femtohenries per metre (fH/m)
1 mH/m1 × 1012 fH/m
2 mH/m2 × 1012 fH/m
5 mH/m5 × 1012 fH/m
10 mH/m1 × 1013 fH/m
25 mH/m2.5 × 1013 fH/m
50 mH/m5 × 1013 fH/m
100 mH/m1 × 1014 fH/m

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