Cpk to PPM Calculator

Convert process capability indices to defect rates and visualize quality performance

Cpk Value i

Cp Value (Optional) i

Process Mean (Optional) i

Specification Type i

Lower Specification Limit (LSL) i

Upper Specification Limit (USL) i

Quality Performance Results

PPM

Defect Rate (PPM)

Yield Percentage

Sigma Level

Cpk

Process Capability

World Class (Cpk ≥ 2.0)

0.001 PPM

Six Sigma (Cpk ≥ 2.0)

3.4 PPM

Excellent (Cpk ≥ 1.67)

0.6 PPM

Good (Cpk ≥ 1.33)

63 PPM

Marginal (Cpk ≥ 1.0)

2700 PPM

Poor (Cpk < 1.0)

> 2700 PPM

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