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Result
Enter values and calculate.
This tool treats COPQ as internal + external failure costs. Prevention and appraisal are shown separately as quality costs. Currency selection changes display only; no exchange-rate conversion is performed.
How to use this calculator
What to enter
Enter or select the following as requested: Currency; Internal failure cost; External failure cost; Prevention cost; Appraisal cost; Sales / revenue. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
Total cost of poor quality combines the failure, prevention, and appraisal costs entered. Compare these costs using the same reporting period and currency, and verify which cost categories are included to avoid double counting.
When to use it
Use this to analyze process quality or plan a quality-improvement study. Verify data collection and statistical assumptions before changing a process or reporting formal capability results.