Crossed Gage R&R Analyzer

1. Create a Data Template

Choose the study structure. The downloaded CSV contains every required Part × Operator × Trial combination, ready for measurements.

Parts

Operators

Trials

Recommended teaching study: 10 parts, 3 operators, 2 or 3 trials.

2. Paste Study Data

Paste directly from Excel or paste CSV text. Required columns: Part, Operator, Trial, Measurement.

Lower Spec Limit (optional)

Upper Spec Limit (optional)

Enter both limits to calculate % Tolerance. Tolerance = USL - LSL.

Study Summary

Total Gage R&R

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% Study Variation

Repeatability

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% Study Variation

Reproducibility

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% Study Variation

Distinct Categories

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NDC

Variance Components & Gage Evaluation

Source	Variance Component	% Contribution	Std Dev	Study Var (6×SD)	% Study Var	% Tolerance

ANOVA

Source	DF	SS	MS	F	P

Components of Variation

Measurements by Part

Measurements by Operator

Operator × Part Interaction

Educational use: This tool intentionally focuses on a balanced crossed Gage R&R study. It is not a substitute for a validated statistical package when regulatory, contractual, safety-critical, or high-consequence decisions require formally validated software.