Gauge R&R — MSA

Measure

Crossed Gauge Repeatability and Reproducibility study using the ANOVA method. Quantifies measurement system variation relative to part-to-part variation and tolerance.

Data Entry

Enter one measurement per row: Part Operator Value
Lines starting with # are ignored. Paste directly from Excel.

Tolerance (USL − LSL) — optional

Acceptability Criteria (AIAG MSA Manual)

Acceptable: %Study Variation < 10%

Marginal: 10% ≤ %Study Variation < 30%

Unacceptable: %Study Variation ≥ 30%

NDC ≥ 5 required for adequate discrimination.

Enter measurement data in the format Part Operator Value (one per row), then click Run Gauge R&R Analysis.

Sample data is pre-loaded. Requires ≥ 2 parts, ≥ 2 operators, ≥ 2 replicates.