Engineering tool
Cost of quality calculator
Quantify quality costs with the prevention, appraisal and failure model.
Inputs
Planning, training, supplier development, FMEA.
Inspection, testing, audits, calibration.
Scrap, rework, re-inspection, downtime.
Returns, warranty, field repairs, penalties.
Result
Enable JavaScript to use this calculator. The method and formulas are explained below.
Model
Cost of conformance = prevention + appraisal. Cost of nonconformance = internal failure + external failure. See the cost of quality guide for definitions and examples.
Interpreting
There is no universal target. Trends over time and the ratio between failure and prevention are usually more informative than a single percentage.
Use of this toolThis calculator is an educational aid. It is not a substitute for the governing standard, the customer specification or engineering approval. Verify results before using them for acceptance decisions.