Assembly Tolerance Analysis Calculator

Geometric Tolerances, Limits Fits Charts, Mechanical Tolerances Tables and Calculators

100 % interchangability and Six Sigma assembly and part tolerance analysis calculator.

Use this calculator to:

• Determine if the parts will assemble 100% of the time, or will assemble 99.73% (± 3 sigma) of the time statistically.
• Done to determine if the parts will function properly at worst condition.
• Determine if the drawing tolerance can be larger.
• Determine if statistical tolerancing will give a lower cost product.
• A fully documented tolerance analysis provides a record of the design dimensional requirements that can be reviewed at a later date in case of a product failure.

For more details and related resources see:

• Design for Manufacturability and Assembly Manual
• Geometric Boundaries II ASME Y14.5-2009
• Standard Deviation Equation and Calculator
• Tolerance Calculator - GD&T True Position
• Tolerance Calculator Fixed Fastener Condition
• Tolerance Calculator Floating Fastener Condition
• Table of Shaft Tolerances per. ISO 286 Calculator

± 3σ is equal to the sum of the squares for each bilateral tolerance

These Calculators requires a Premium Membership to access.

100% Interchangabilty and ± 3σ tolerances using bilateral uneven tolerances.

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100% Interchangabilty and ± 3σ tolerances using bilateral tolerances.