Convert Millimetres per metre per kelvin to Per kelvin

Convert Millimetres per metre per kelvin (mm/(m·K)) to Per kelvin (1/K) instantly and accurately.

Millimetres per metre per kelvin (mm/(m·K))
Per kelvin (1/K)

Conversion Formula

1/K = mm/(m·K) × 0.001

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 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.

Quick Reference Table

Millimetres per metre per kelvin (mm/(m·K))Per kelvin (1/K)
1 mm/(m·K)0.001 1/K
2 mm/(m·K)0.002 1/K
5 mm/(m·K)0.005 1/K
10 mm/(m·K)0.01 1/K
25 mm/(m·K)0.025 1/K
50 mm/(m·K)0.05 1/K
100 mm/(m·K)0.1 1/K

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