Process capability, sampling & reliability

Quality Engineering calculators

Calculators for OEE, process capability, sigma level, sampling plans and reliability — the ISO-style methods behind manufacturing quality management.

• OEE Calculator
  Availability × Performance × Quality from one shift record — plus TEEP and the time lost to each of the six big losses.
• Cp, Cpk, Pp & Ppk Calculator
  Potential capability and actual performance from one set of spec limits — plus the centring index and the defect rate each tail implies.
• DPMO & Sigma Level Calculator
  Defects per million opportunities, rolled throughput yield and process sigma from a defect count.
• AQL Sampling Plan Calculator
  Producer's risk, consumer's risk and AOQL for the sampling plan you actually run — from the binomial and hypergeometric OC curve.