COPQ Breakdown (Cost of Quality) Calculator
Sum prevention, appraisal and failure costs to see your total cost of quality.
CurrentTarget
Total cost of quality
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Failure cost share
As % of revenue
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Total COPQ is often 5–20% of revenue; shifting to prevention lowers it.
Values are calculated only in your browser; no data is stored.
About this metric
What is it?
The four components of the cost of quality: prevention, appraisal, internal failure and external failure.
How is it calculated?
Total COPQ = prevention + appraisal + internal + external; failure share = (internal + external) / total.
How to interpret it?
Total is usually 5–20% of revenue; a high failure share means you should invest in prevention.
How to improve it?
Shift budget from failure to prevention: one unit of prevention saves several units of failure cost.
Let's improve these numbers on the field
Measuring is the first step; lasting gains come from implementing together on the field.
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