VYRCO / Machining

Linear thermal expansion

Estimate temperature-driven length change using the coefficient supplied by the user.

Free · no accountv1.0 · 2026-10-10Private inputs in your browser

Linear thermal expansion

VYRCO · v1.0 · https://vyrco.com/en/tools/thermal-expansion/

Input data

Numbers: use a decimal point or comma, without thousands separators. Complete fields unless marked optional.

Preparing the tool…

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How to use it

Obtain the applicable linear coefficient from the material documentation or supplier.
Enter initial length and signed temperature change.
Interpret positive ΔL as growth and negative ΔL as contraction.

Fictional example

Fictional example with no material identified: α = 10 µm/(m·K), L₀ = 500 mm, ΔT = 20 K → ΔL = 0.1 mm.

Method

ΔL = α × 10⁻⁶ × L₀ × ΔT; Lfinal = L₀ + ΔL. Enter α in µm/(m·K), L₀ in mm and ΔT = Tfinal − Tinitial in K or a °C difference. α is held constant over the interval.

Scope and limitations

Linear model of free expansion at uniform temperature. No preset materials: use a documented coefficient applicable to the interval and direction. Does not calculate stresses, gradients, phase changes or fits. A nonpositive final length is rejected.

Sources and review

OpenStax · University Physics Volume 2 · Thermal expansion
Accessed: 2026-10-10

Tool v1.0 · Reviewed 2026-10-10. To report an error, include tool, version, units and a non-confidential example.

info@vyrco.com

Linear thermal expansion

Linear thermal expansion

Input data

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