QM Bench

DPMO

defects per million opportunities

DPMO = defects / (units × opportunities) · 10⁶

A Six Sigma measure that counts defects relative to the number of opportunities for a defect, so products of different complexity can be compared. For one opportunity per unit, DPMO equals PPM.

Calculate it

Cpk, PPM and Sigma Converter: Convert Cpk, PPM, yield and sigma level, with or without 1.5 σ shift.

Related terms

  • PPM: parts per million defective
  • Sigma level: Six Sigma performance scale