Cp Cpk and Pp Ppk Calculator Validation

Validate QI Macros Capability Metrics Using Ford Data

Ford has provided data for validating various calculations described in AIAG Manuals.

QI Macros calculations have been tested and validated against the Ford data.

Ford Test Specifications

Ford Cp Cpk Validation Data

Ford's Cp Cpk Expected Results

expected cp cpk pp ppk using ford sample data

Compare to QI Macros Histogram Results

histogram using rbar


Why Choose QI Macros to Perform Capability Analysis and Draw Histograms?



  • Only $329 USD - less with quantity discounts
  • No annual fees
  • Free Technical Support

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Easy to Use

  • Works Right in Excel
  • Calculates Cp Cpk Pp Ppk
  • Accurate Results Without Worry

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Proven and Trusted

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