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Cpk / Ppk Calculator
Enter your measurement data and specification limits to calculate process capability indices.
Paste or type your measurements separated by commas, spaces, or new lines.
Cpk Interpretation Guide
≥ 1.67Excellent — process is well within specification
≥ 1.33Capable — generally acceptable for most industries
≥ 1.00Barely capable — process may produce out-of-spec parts
< 1.00Not capable — process needs improvement