Convert Kilohenries per metre to Femtohenries per metre
Convert Kilohenries per metre (kH/m) to Femtohenries per metre (fH/m) instantly and accurately.
Conversion Formula
fH/m = kH/m × 1.000000000e+18
About Kilohenries per metre
The kilohenry per metre (kH/m) equals 10³ H/m ≈ 7.96 × 10⁸ µ₀. A theoretical reference scale beyond any known bulk magnetic material: achieving kH/m would require µᵣ ≳ 10⁹, far exceeding the highest measured value (~10⁶ for Supermalloy). Used as an upper bound in theoretical magnetics. 1 kH/m = 10³ 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
| Kilohenries per metre (kH/m) | Femtohenries per metre (fH/m) |
|---|---|
| 1 kH/m | 1 × 1018 fH/m |
| 2 kH/m | 2 × 1018 fH/m |
| 5 kH/m | 5 × 1018 fH/m |
| 10 kH/m | 1 × 1019 fH/m |
| 25 kH/m | 2.5 × 1019 fH/m |
| 50 kH/m | 5 × 1019 fH/m |
| 100 kH/m | 1 × 1020 fH/m |