Scrap Rate Calculator
Calculate scrap rate, yield percentage, and cost of scrap. Enter total units, scrap units, and unit cost.
How to Use the Scrap Rate Calculator
- Enter the total number of units produced.
- Enter the number of scrap (defective) units.
- Enter the unit cost to calculate the financial cost of scrap.
使用场景
- •Monitoring process quality in manufacturing.
- •Quantifying the financial impact of defects.
- •Quality KPI reporting and target-setting.
公式
Scrap Rate = (Scrap / Total) × 100%. Yield = 100% − Scrap Rate. Cost of Scrap = Scrap Units × Unit Cost.
常见问题
What is scrap rate?
Scrap rate is the proportion of defective output in total production. A low scrap rate indicates high quality and minimal waste.
What scrap rate is acceptable?
In automotive manufacturing, targets are in single-digit ppm (parts per million). In general production < 1% is common, though Six Sigma aims for < 3.4 ppm.
How can scrap rate be reduced?
Reduction methods include Statistical Process Control (SPC), Poka-yoke (error-proofing), Total Quality Management (TQM), and root cause analysis.