Process Capability Index Calculator.

Calculate Cp, Cpu, Cpl, and Cpk from entered process limits and sigma.

On-device calculationNo signup

Set your values

Results update as you type.

02 / ANSWER

Lower specification limit

Upper specification limit

Process mean

Process standard deviation

0.000000

cpu

0.000000

cpl

0.000000

cpk

0.000000

Cp/Cpk are capability indices from entered limits and sigma; this route does not claim normality, control, or product safety.

Results update automatically as you type.

FAQs

What statistical contract is used?

Calculate Cp, Cpu, Cpl, and Cpk from entered process limits and sigma. The page states its exact formula and does not infer a distribution, p-value, or suitability claim.

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