# Linear Expansion - Thermal Expansion

# Notation and Units

## Metric and Imperial Units

The above formulas may be used with both imperial and metric units. As with all calculations care must be taken to keep consistent units throughout with examples of units which should be adopted listed below:

# Notation

- L = length under consideration, in or mm
- L
_{F}= final length, in or mm - ∆
_{L}= change in length, in or mm - ∆
_{T}= change in temperature, ᵒK or ᵒC - α = coefficient of thermal expansion, ᵒK
^{-1}or ᵒC^{-1}