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

"My college was frustrated by MiniTab.  MiniTab can be a little “heavy”.  He was trying to do some capability analysis on mechanical properties.  He is a smart guy with a PhD in metallurgy.  I showed him SPC for Excel and he liked the simplicity and ease of use.  He sat in my office with his laptop, paid for and downloaded the software.  He left my office a happy man."

David Hawkins
Quality Coordinator

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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