Cp Calculator

Cp calculator Formula:(USLLSL6 × Std.Deviation   )

Upper Specification Limit(USL)=
Lower Specification Limit(LSL)=
Process Standard Deviation(σ)=

Potential Cp=


Cp Calculator is a free online tool that displays the statistical measure to access the ability of the process to meet the required specifications. BYJU’S online Cp calculator tool makes the calculation faster, and it displays the measure in a fraction of seconds.

How to Use the Cp Calculator?

The procedure to use the Cp calculator is as follows:

Step 1: Enter the lower, upper specification limit, and the standard deviation in the respective input field

Step 2: Now click the button “Calculate” to get the result 

Step 3: Finally, the process capability will be displayed in the output field

What is Meant by Cp?

In statistics, a process capability is a measure which is used to define the ability of the process to meet the specified requirements. Cp is also known as the process potential index, which is the simplest indicator of the process capability. It will give a description of the form. The formula to calculate process capability is given by,

Cp (USL- LSL)/(6× SD)


USL = upper specification limit

LSL = Lower specification limit

SD = standard deviation

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