Engineering & Construction
Weld Size Calculator
Calculate the throat of a fillet weld as leg ÷ √2, then a capacity from the length and the allowable stress you enter.
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This runs entirely in your browser. Nothing you type is sent to a server.
How to use the Weld Size Calculator
- 1Enter the leg size and the weld length.
- 2Enter the allowable stress you are using.
- 3Read the throat and the capacity.
Questions
Where does the stress come from?
From you. The tool does not look up a code stress.
What is the throat?
The shortest distance through the fillet. For an equal-leg fillet it is the leg divided by √2.