Free Thermal Expansion Calculator
Calculate linear thermal expansion using DeltaL = alpha * L0 * DeltaT.
1/°C
m
°C
Change in Length
0.004800 m
Change in Length (mm)4.800 mm
Final Length10.004800 m
Change in Length vs Coefficient of Linear Expansion
Thermal Expansion
Most materials expand when heated. Linear thermal expansion predicts the change in length.
Formula
DeltaL = alpha * L_0 * DeltaT
where alpha is the coefficient of linear expansion, L_0 is the original length, and DeltaT is the temperature change.
Example Calculation
A 10 m steel beam (alpha = 12e-6 /°C) heated by 40°C.
- 01DeltaL = alpha * L0 * DeltaT
- 02DeltaL = 12e-6 * 10 * 40
- 03DeltaL = 0.0048 m = 4.8 mm
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