Convert Millimetres per metre per kelvin to Percent per degree Fahrenheit
Convert Millimetres per metre per kelvin (mm/(m·K)) to Percent per degree Fahrenheit (%/°F) instantly and accurately.
Conversion Formula
%/°F = mm/(m·K) × 0.05555555556
About Millimetres per metre per kelvin
The mm/(m·K) equals exactly 10⁻³ /K = 1000 ppm/K and is used in structural and civil engineering for bridge girder and pipeline thermal-expansion calculations. Steel at 0.012 mm/(m·K) expands 12 mm per 100 m track per 10 K rise. Polymers: 0.07-0.20 mm/(m·K). 1 mm/(m·K) = 10⁻³ /K = 1000 ppm/K.
About Percent per degree Fahrenheit
The %/°F equals 9/5 × 10⁻² /K ≈ 0.018 /K, the Fahrenheit percent-expansion unit used in US polymer and rubber industry specifications. PTFE: ≈0.0075 %/°F; HDPE: ≈0.0083 %/°F; silicone rubber: ≈0.056 %/°F. 1 %/°F = 9/5 × 10⁻² /K ≈1.8 %/K.
Quick Reference Table
| Millimetres per metre per kelvin (mm/(m·K)) | Percent per degree Fahrenheit (%/°F) |
|---|---|
| 1 mm/(m·K) | 0.0555556 %/°F |
| 2 mm/(m·K) | 0.111111 %/°F |
| 5 mm/(m·K) | 0.277778 %/°F |
| 10 mm/(m·K) | 0.555556 %/°F |
| 25 mm/(m·K) | 1.38889 %/°F |
| 50 mm/(m·K) | 2.77778 %/°F |
| 100 mm/(m·K) | 5.55556 %/°F |