Six Sigma Sigma levels Sigma levels

| Sigma_level | Sigma_with_1_5σ_shift | DPMO | Percent_defective | Percentage_yield | Short_term_C_pk | Long_term_C_pk |
|---|---|---|---|---|---|---|
| 1 | -0.5 | 691462 | 69% | 31% | 0.33 | –0.17 |
| 2 | 0.5 | 308538 | 31% | 69% | 0.67 | 0.17 |
| 3 | 1.5 | 66807 | 6.7% | 93.3% | 1.00 | 0.5 |
| 4 | 2.5 | 6210 | 0.62% | 99.38% | 1.33 | 0.83 |
| 5 | 3.5 | 233 | 0.023% | 99.977% | 1.67 | 1.17 |
| 6 | 4.5 | 3.4 | 0.00034% | 99.99966% | 2.00 | 1.5 |