Convert Microns per metre per degree Celsius to Millimetres per metre per degree Celsius
Convert Microns per metre per degree Celsius (μm/(m·°C)) to Millimetres per metre per degree Celsius (mm/(m·°C)) instantly and accurately.
Conversion Formula
mm/(m·°C) = μm/(m·°C) × 0.001
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.
About Millimetres per metre per degree Celsius
The millimetre per metre per degree Celsius (mm/(m·°C)) equals exactly 10⁻³ /K = 1 mm/(m·K), since temperature intervals 1 °C = 1 K (exact). Used in European structural engineering, EN standards, and civil/mechanical design codes for expansion joint sizing. Steel rail: 0.012 mm/(m·°C); aluminium curtain wall: 0.023 mm/(m·°C). 1 mm/(m·°C) = 10⁻³ /K = 1 mm/(m·K).
Quick Reference Table
| Microns per metre per degree Celsius (μm/(m·°C)) | Millimetres per metre per degree Celsius (mm/(m·°C)) |
|---|---|
| 1 μm/(m·°C) | 0.001 mm/(m·°C) |
| 2 μm/(m·°C) | 0.002 mm/(m·°C) |
| 5 μm/(m·°C) | 0.005 mm/(m·°C) |
| 10 μm/(m·°C) | 0.01 mm/(m·°C) |
| 25 μm/(m·°C) | 0.025 mm/(m·°C) |
| 50 μm/(m·°C) | 0.05 mm/(m·°C) |
| 100 μm/(m·°C) | 0.1 mm/(m·°C) |