DPMO & Sigma Level Calculator
Calculate Defects Per Million Opportunities (DPMO), sigma level, and process yield from defect data.
How to Use the DPMO Calculator
- Enter number of defects found.
- Enter total units inspected.
- Enter opportunities per unit and click Calculate.
使用场景
- •Six Sigma process measurement.
- •Quality baseline assessment.
- •Benchmarking process performance.
公式
Formula: DPMO = Defects × 1,000,000 / (Units × Opportunities). Yield = (1 − Defects/(Units×Opps)) × 100%.
常见问题
What is DPMO?
DPMO is the number of defects per one million opportunities for defect occurrence. It normalizes defect rates across processes with different complexity.
What DPMO corresponds to Six Sigma?
Six Sigma quality corresponds to 3.4 DPMO, or a sigma level of 6 (with 1.5σ shift).
What is an 'opportunity' for defect?
Each characteristic of a product or service that can either meet or fail to meet a customer requirement counts as one opportunity.