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DPMO / Sigma Level
Six Sigma quality level · includes 1.5σ shift · yield conversion
DPMO (defects per million opportunities) is the core Six Sigma metric. Enter defects, units and opportunities per unit to auto-compute DPMO, Sigma level and yield. The Sigma level includes the 1.5σ long-term shift by default (industry convention).
Calculation mode
Input data
Result
Sigma level
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DPMO
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Yield
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Defect rate
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Quality level progress
1σ2σ3σ4σ5σ6σ
Sigma level reference
| Sigma | DPMO | Yield | Rating |
|---|---|---|---|
| 1σ | 691,462 | 30.85% | Very poor |
| 2σ | 308,538 | 69.15% | Poor |
| 3σ | 66,807 | 93.32% | Fair |
| 4σ | 6,210 | 99.38% | Good |
| 5σ | 233 | 99.98% | Excellent |
| 6σ | 3.4 | 99.9997% | World-class |
About DPMO & Sigma Level Calculator
Convert defects, units and opportunities into DPMO, yield and sigma level, including the 1.5 sigma shift convention, with RTY support.
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