Tolerance Stack-Up Calculator

Analyze assembly tolerances using worst-case and RSS statistical methods.

Worst-case assumes all tolerances at max simultaneously. RSS is a statistical method covering 99.73% of assemblies.
Enter nominal dimension and bilateral tolerance (plus/minus). Leave unused dimensions as 0.
mm
mm
mm
mm
mm

Results

Nominal Total-mm
Worst-Case Tolerance-± mm
Worst-Case Max / Min-mm
RSS Tolerance (3 sigma)-± mm
Statistical Max / Min-mm
References: ASME Y14.5 — GD&T Standard, Dimensioning and Tolerancing Handbook (Drake).