Thermal Expansion Calculator
Calculate the change in length due to temperature change using ΔL = αLΔT. Supports linear thermal expansion.
Steel: 12, Al: 23
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Enter values to calculate expansion.
Linear Thermal Expansion Formula
ΔL = α × L × ΔT
New length = L + ΔL
New length = L + ΔL
Example: A 10 m steel beam (α = 12×10⁻⁶/°C) heated by 50°C.
ΔL = 12×10⁻⁶ × 10 × 50 = 0.006 m = 6 mm
ΔL = 12×10⁻⁶ × 10 × 50 = 0.006 m = 6 mm
Common Coefficients (×10⁻⁶/°C)
| Material | α |
|---|---|
| Steel | 12 |
| Aluminum | 23 |
| Copper | 17 |
| Concrete | 12 |
| Glass | 9 |
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Last updated: 2026-08-08