Process Capability Index Calculator

The process capability index is also known as the process capability ratio. It is the ability of a process to produce output within specification limits. This index is helpful in the process improvement efforts. Use this online process capability index calculator to find the potential Cp and Cpk index. Enter the upper specification limit (USL), lower specification limit (LSL), process standard deviation and process mean to find how Cp and Cpk calculation is done.

Cp and Cpk Calculation

Result :

You can calculate both potential Cp and actual Cpk index in this process capability index calculator. CPK compares the output of an in-control process to the specification limits by using capability indices.