Free tolerance stack calculator

Calculates worst-case and statistical variation of a linear dimension chain.

Contributing dimensions

Assumed Cp per contributor

Lower closing-dimension limit

Upper closing-dimension limit

How to use the result

Check the definition of the dimension and datum conditions on the drawing. The calculator does not replace inspection of the specific part.

Worst Case: limit sizes sum with the correct signsσ_total = √Σ ((T_i / (6 Cp_i))²)

Sources: Linear propagation of independent normal variances; worst-case interval arithmetic.