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Defects per Million Opportunities Calculator — result sheet
Calculate defects per million opportunities from defects, units, and opportunities per unit.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: DPMO = defects/(units × opportunities per unit) × 1,000,000.
The metric normalizes observed defects by the number of possible defect opportunities in the inspected units.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Defects observed — defects; minimum 0; maximum 1000000000
- Units inspected — units; minimum 1.0E-6; maximum 1000000000
- Opportunities per unit — minimum 1.0E-6; maximum 1000000
Worked example
| Input | Value |
|---|---|
| Defects observed | 12 |
| Units inspected | 1000 |
| Opportunities per unit | 5 |
DPMO = 2,400.
Assumptions and limits
- Defects, units, and opportunities use the same inspection scope.
- Opportunities per unit is positive.
- Independence, process capability, sigma conversion, and confidence intervals are not inferred.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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