How do you calculate cp values?

Cp values, or process capability indices, are calculated by assessing the process's ability to produce outputs within specified limits. The Cp index is determined using the formula: Cp = (USL - LSL) / (6σ), where USL is the upper specification limit, LSL is the lower specification limit, and σ is the process standard deviation. A higher Cp value indicates a more capable process, ideally greater than 1.33 for many industries.