Thermal Expansion Calculator
Estimate linear expansion of materials with temperature.
How to Use This Calculator
Enter linear expansion coefficient α, initial length, and temperature change. The tool returns ΔL and final length.
Formula
ΔL = α L₀ ΔT
Lf = L₀ + ΔL
About Thermal Expansion
Most materials expand with temperature. Coefficient α varies by material and temperature range; this tool assumes constant α.
Frequently Asked Questions
Volumetric expansion?
For small expansions, β ≈ 3α for isotropic solids. This tool covers linear expansion.
Units for α?
Use per Kelvin (1/K). Example: steel ~ 12×10⁻⁶ 1/K.