Stat Tools

Sigma Level / DPMO Calculator

Define PhaseGB

Convert between Defects, DPMO, Sigma Level, and Yield. Standard project charter baseline metric with 1.5σ long-term shift convention.

Calculate From

Opportunities = number of ways a defect can occur per unit (CTQs)

Results

Sigma Level

3.85σ

Average

DPMO

9400.0

Yield

99.0600%

Defect Rate

0.9400%

DPO

0.009400

DPU

0.0470

Sigma Level Benchmark Reference (with 1.5σ shift)
Sigma LevelDPMOYieldDefect RateAssessment
3.499.99966%0.00034%World Class
23399.977%0.02300%Excellent
6,21099.379%0.62100%Good
66,80793.32%6.68000%Average
308,53769.15%30.85000%Below Average
691,46230.85%69.15000%Poor

The 1.5σ shift accounts for long-term process drift. Short-term sigma = displayed value + 1.5.

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