Shrinkage Allowance (Thermal Expansion) Calculator

Shrinkage (Δ L):

Original length (L₀):

Coefficient of thermal expansion (α):

Change in temperature (Δ T):

How This Is Calculated

$$ \Delta L = L_0 \cdot \alpha \cdot \Delta T $$ where:

Δ L = Shrinkage (m)

L₀ = Original length (m)

α = Coefficient of thermal expansion (K^-1)

Δ T = Change in temperature (K)

Assumptions

The relationship between the change in length and change in temperature is linear.
The material is homogeneous.
Coefficient of thermal expansion remains constant.
No internal stress effects are considered.

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