Convert Millimetres per metre per degree Fahrenheit to Microns per metre per degree Celsius
Convert Millimetres per metre per degree Fahrenheit (mm/(m·°F)) to Microns per metre per degree Celsius (μm/(m·°C)) instantly and accurately.
Conversion Formula
μm/(m·°C) = mm/(m·°F) × 1800
About Millimetres per metre per degree Fahrenheit
The mm/(m·°F) equals 9/5 × 10⁻³ /K ≈1.8 × 10⁻³ /K, combining metric displacement with Fahrenheit temperature. It appears in US-origin pipeline and structural reports where dimensions are given in metres but temperatures in °F. Steel: ≈0.00667 mm/(m·°F); aluminium: ≈0.01283 mm/(m·°F). 1 mm/(m·°F) = 9/5 × 10⁻³ /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
| Millimetres per metre per degree Fahrenheit (mm/(m·°F)) | Microns per metre per degree Celsius (μm/(m·°C)) |
|---|---|
| 1 mm/(m·°F) | 1800 μm/(m·°C) |
| 2 mm/(m·°F) | 3600 μm/(m·°C) |
| 5 mm/(m·°F) | 9000 μm/(m·°C) |
| 10 mm/(m·°F) | 18000 μm/(m·°C) |
| 25 mm/(m·°F) | 45000 μm/(m·°C) |
| 50 mm/(m·°F) | 90000 μm/(m·°C) |
| 100 mm/(m·°F) | 180000 μm/(m·°C) |