Convert Per kelvin to Millimetres per metre per kelvin
Convert Per kelvin (1/K) to Millimetres per metre per kelvin (mm/(m·K)) instantly and accurately.
Conversion Formula
mm/(m·K) = 1/K × 1000
About Per kelvin
The per kelvin (1/K = K⁻¹) is the SI unit for linear thermal expansion coefficient (α = (1/L) dL/dT). Used in NIST databases, FEA material cards, and thermodynamics textbooks. Liquid mercury: ≈6.1 × 10⁻⁵ /K; aluminium: ≈2.3 × 10⁻⁵ /K; fused silica: ≈5.5 × 10⁻⁷ /K. 1 /K = 10⁶ ppm/K = 1/°C.
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.
Quick Reference Table
| Per kelvin (1/K) | Millimetres per metre per kelvin (mm/(m·K)) |
|---|---|
| 1 1/K | 1000 mm/(m·K) |
| 2 1/K | 2000 mm/(m·K) |
| 5 1/K | 5000 mm/(m·K) |
| 10 1/K | 10000 mm/(m·K) |
| 25 1/K | 25000 mm/(m·K) |
| 50 1/K | 50000 mm/(m·K) |
| 100 1/K | 100000 mm/(m·K) |