Convert Millimetres per metre per kelvin to Microns per metre per degree Celsius
Convert Millimetres per metre per kelvin (mm/(m·K)) to Microns per metre per degree Celsius (μm/(m·°C)) instantly and accurately.
Conversion Formula
μm/(m·°C) = mm/(m·K) × 1000
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 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 kelvin (mm/(m·K)) | Microns per metre per degree Celsius (μm/(m·°C)) |
|---|---|
| 1 mm/(m·K) | 1000 μm/(m·°C) |
| 2 mm/(m·K) | 2000 μm/(m·°C) |
| 5 mm/(m·K) | 5000 μm/(m·°C) |
| 10 mm/(m·K) | 10000 μm/(m·°C) |
| 25 mm/(m·K) | 25000 μm/(m·°C) |
| 50 mm/(m·K) | 50000 μm/(m·°C) |
| 100 mm/(m·K) | 100000 μm/(m·°C) |