How does the Tolerance Stack Calculator work?

Linear stack: total tolerance = sum of individual tolerances (worst case) Then: Statistical method: total = √(sum of squares) — more realistic Then: Design tolerances to achieve assembly fit requirements.

Can you give an example of how to use the Tolerance Stack Calculator?

Example: Input Four parts each ±0.5mm, total stack tolerance requirement ±1.5mm gives a result of Worst case stack = 2.0mm (exceeds), statistical = 1.0mm (passes) (Statistical justified).

Is the Tolerance Stack Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Tolerance Stack Calculator?

Our Tolerance Stack Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

Specializat

Tolerance Stack Calculator

Tolerance stack-up analysis determines cumulative effect of individual component tolerances on final assembly. Critical for assembly success.

Difficulty:advanced

References

›Tolerance Stack — Wikipedia

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