Convert Percent per degree Fahrenheit to Microns per metre per degree Celsius
Convert Percent per degree Fahrenheit (%/°F) to Microns per metre per degree Celsius (μm/(m·°C)) instantly and accurately.
Conversion Formula
μm/(m·°C) = %/°F × 18000
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.
About Microns per metre per degree Celsius
The micrometre per metre per degree Celsius (μm/(m·°C)) equals exactly 10⁻⁶ /K, since temperature intervals 1 °C = 1 K (exact). It is the standard CTE notation in European engineering datasheets, ISO material standards, and many textbooks. Numerically identical to ppm/K. Aluminium: 23.1 μm/(m·°C); steel: ≈12 μm/(m·°C). 1 μm/(m·°C) = 1 ppm/K = 10⁻⁶ /K.
Quick Reference Table
| Percent per degree Fahrenheit (%/°F) | Microns per metre per degree Celsius (μm/(m·°C)) |
|---|---|
| 1 %/°F | 18000 μm/(m·°C) |
| 2 %/°F | 36000 μm/(m·°C) |
| 5 %/°F | 90000 μm/(m·°C) |
| 10 %/°F | 180000 μm/(m·°C) |
| 25 %/°F | 450000 μm/(m·°C) |
| 50 %/°F | 900000 μm/(m·°C) |
| 100 %/°F | 1800000 μm/(m·°C) |