EngineeringToolkit

Thermal Expansion Formula

The change in length of a material due to temperature change.

Formula

ΔL = αL₀ΔT

Discipline: Materials Engineering. Result unit: m.

Variables and units

  • ΔL — Length Change (m): Change in length
  • α — Thermal Expansion Coefficient (1/K): Coefficient of thermal expansion
  • L₀ — Initial Length (m): Initial length
  • ΔT — Temperature Change (K): Change in temperature