Process Capability (Cpk/Ppk) Analysis with SPC for Excel

Version 5 is now available and contains non-normal process capablity analysis!

We know how important it is to meet customer specifications.  That's why we've put so much effort into developing the Process Capability features of our SPC for Excel software. 

Our goal is to provide users with best tools for continually improving processes.  To that end, we've included process capability features that any quality professional in today's market will need in a software package that won't break the bank. 

Our software generates histograms with distribution curves, plots the specification limits, handles one-sided specifications and generates all the capability statistics you need including Cpk and Ppk. 

Watch a Quick Video Highlighting our Process Capability Features

From Our Satisfied Customers

"Would you believe it that today is the day that we go for our ISO 9000 certification audit and the process capability charts I generated using your program actually saved the day for me? The lead auditor was very impressed with the charts and the analyses and the conclusion we deduced from them."

-Akbar Md. Thayoob, Phu My Plastics & Chemicals Co., Vietnam

Process Capability Key Features

Within Process Capability

Based on Estimated Sigma

  • Cp
  • Cpk
  • Cpu
  • Cpl
  • Estimated Sigma (from range or standard deviation chart)
  • Part per million > upper specification limit (PPM > USL)
  • Part per million < lower specification limit (PPM < LSL)
  • Total part per million out of specification (Total PPM)
  • Sigma level

Overall Process Capability

Based on Calculated Sigma

  • Pp
  • Ppk
  • Ppu
  • Ppl
  • Calculated Sigma
  • Part per million > upper specification limit (PPM > USL)
  • Part per million < lower specification limit (PPM < LSL)
  • Total part per million out of specification (Total PPM)
  • Sigma level

View the full list of features

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