Engineering tool · V0.2
Tolerance Stack Calculator
Calculate a 1D linear stack using nominal values, worst-case limits and one-sided RSS limits. All calculations run locally in your browser.
Direction
Name
Nominal
+ Tol
− Tol
Nominal stack—
Worst-case minimum—
Worst-case maximum—
RSS range—
Enter positive tolerance magnitudes. “+” dimensions increase the stack; “−” dimensions subtract from it. RSS is an engineering estimate and should only be used when its statistical assumptions are appropriate.
How the calculation works
For worst case, each dimension is moved to the limit that maximizes or minimizes the final stack. For RSS, upper and lower contributing tolerances are combined by the square root of the sum of squares.