Convert Microns per metre per degree Celsius to Per millikelvin
Convert Microns per metre per degree Celsius (μm/(m·°C)) to Per millikelvin (1/mK) instantly and accurately.
Conversion Formula
1/mK = μm/(m·°C) × 1.000000000e-9
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 Per millikelvin
The per millikelvin (1/mK) equals exactly 10³ /K and is encountered in cryogenic physics where working temperatures lie in the millikelvin range. Near quantum phase transitions and magnetic ordering temperatures, anomalous CTE values can reach orders far above room-temperature CTE. 1 /mK = 10³ /K = 10⁹ ppm/K.
Quick Reference Table
| Microns per metre per degree Celsius (μm/(m·°C)) | Per millikelvin (1/mK) |
|---|---|
| 1 μm/(m·°C) | 1 × 10-9 1/mK |
| 2 μm/(m·°C) | 2 × 10-9 1/mK |
| 5 μm/(m·°C) | 5 × 10-9 1/mK |
| 10 μm/(m·°C) | 1 × 10-8 1/mK |
| 25 μm/(m·°C) | 2.5 × 10-8 1/mK |
| 50 μm/(m·°C) | 5 × 10-8 1/mK |
| 100 μm/(m·°C) | 1 × 10-7 1/mK |