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

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Formule

## 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.

Exemple Résolu

A 10 m steel beam (alpha = 12e-6 /°C) heated by 40°C.

  1. 01DeltaL = alpha * L0 * DeltaT
  2. 02DeltaL = 12e-6 * 10 * 40
  3. 03DeltaL = 0.0048 m = 4.8 mm