# Thermal expansion

## Table of Contents

The thermal expansion formula is:

$$ \Delta L = L_0 \alpha \Delta T $$

Where

- \(\small \Delta L\) is the change in length,
- \(\small L_0\) is the initial length,
- \(\small \alpha\) is the coefficient of linear expansion, and
- \(\small \Delta T\) is the change in temperature in Kelvin.