Cp vs Cpk
Compare Cp vs Cpk, understand the key difference between process spread and centering, and learn how to interpret both metrics together.
Guides
Learn the concepts, then jump into the tools.
Browse practical guides on Cp, Cpk, Pp, Ppk, and process capability topics, then move straight into the calculator or DoE planner when you are ready to act.
What Is a Good Cpk Value?
Learn what is considered a good Cpk value, why 1.33 is common, and how to interpret Cpk targets in process capability analysis.
How to Calculate Cp and Cpk
Learn how to calculate Cp and Cpk step by step using specification limits, sample mean, and standard deviation.
What Is Cpk?
Understand what Cpk means, how the Cpk formula works, and what a good Cpk value looks like for process capability analysis.
What Is Cp?
Learn what Cp means in process capability analysis, how to use the Cp formula, and what a good Cp value looks like in manufacturing.
Cp Formula
Understand the Cp formula, what each part means, and how to use it to evaluate process capability against specification limits.
What Are Pp and Ppk?
Learn what Pp and Ppk mean, how they differ from Cp and Cpk, and when to use process performance indices in quality analysis.
Pp vs Ppk
Compare Pp vs Ppk and learn how long-term process performance indices differ from short-term capability indices like Cp and Cpk.