ToolsProcess Sigma Level Calculator

Process Sigma Level Calculator

Calculate DPMO and Sigma level from your defect count. Six Sigma target: 3.4 DPMO = 6σ. See how far your process is from world class.

Defects

Total number of actual defects found

Opportunities per Unit

Number of possible defect locations per product

Units Produced

Total units produced or inspected

📥 Download Sample CSV

Use Case

A process engineer wants to know how capable the current soldering station is. Example: 1,000 PCBs produced per day, each with 500 solder joints (opportunities per unit), and 25 defective joints found. → Enter these three numbers to instantly get the DPMO and Sigma level, and decide whether an improvement project is needed.

Example

Defects: 25 Opportunities per unit: 500 Units produced: 1000 DPMO = 25 / (500 × 1000) × 1,000,000 = 50 → ~5.5σ (Excellent)

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