Tolerance Stack-up Calculator (Worst-Case & RSS)
Calculate Worst-Case (WC) max/min assembly bounds and Root-Sum-Square (RSS) 3-Sigma statistical limits.
Assembly Dimension Loop
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±Tol:
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Analysis Results
Nominal Stack Total:30.000 mm
1. Worst-Case (WC) Analysis
Max Upper Bound:30.180 mm
Min Lower Bound:29.820 mm
WC Total Tolerance:±0.180 mm
2. Statistical RSS (Root-Sum-Square)
RSS 3-Sigma Max:30.116 mm
RSS 3-Sigma Min:29.884 mm
RSS Total Tolerance:±0.116 mm
FAQ
Frequently Asked Questions
Everything you need to know about this tool
Worst-Case assumes all component dimensions are at their extreme limits simultaneously. Root-Sum-Square (RSS) is a statistical method assuming normal bell-curve distributions, resulting in realistic 3-Sigma manufacturing limits.
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