Six Sigma Calculator
Enter Your Process Data
units
CTQs
Number of ways a defect could occur on a single unit.
defects
Your Results
Fill in your process data and tap
Calculate Sigma Level to see your results.
Calculate Sigma Level to see your results.
World-Class Benchmark
6σ / 3.4 DPMO
Typical Industry Average
~3σ
Defect Rate
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Process Rating
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Quality Breakdown
A visual snapshot of your process yield and sigma performance.
How six sigma calculator works
A six sigma calculator measures process quality. It uses your total units, opportunities for defects per unit and actual defects found to work out DPMO and the resulting sigma level.
Limitations of six sigma
- Assumes a stable, well-defined process
- Needs accurate defect and opportunity counts
- Less suited to small sample sizes
- Does not account for customer perception of quality