Engineering & Construction
Thermal Expansion Calculator
Estimate how much a length changes when the temperature changes.
Free forever.
Change in length = α × length × change in temperature. The starting α is 0.000012 per °C, a typical value for carbon steel. Edit it for another material.
Result
Press Calculate.
Result
Press Calculate.
How to use the Thermal Expansion Calculator
- Enter the length and the temperature change.
- Keep the steel coefficient or replace it.
- Read how many millimetres the length changes.
Questions
What does a negative temperature do?
The piece gets shorter. Enter a negative change when it cools.
Is 0.000012 exact?
It is a typical figure for carbon steel. Alloys differ, so edit the coefficient when you have a better one.
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