🗑️ Quality
Scrap Percentage Calculator
Calculate scrap rate by count or by weight. Track monthly scrap cost and see where material is being lost in your production process.
📊 Scrap Analysis
Scrap Rate
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Good Output Rate
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Daily Scrap Cost
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Monthly Scrap Cost
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Annual Scrap Cost (est.)
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How to Calculate Scrap %
Scrap % (by count) = (Scrap Units ÷ Total Units) × 100
Scrap % (by weight) = (Scrap kg ÷ Total Input kg) × 100
Monthly Cost = Scrap Qty × Material Cost × Working Days
Weight-based: metal, plastic, process industries
Count-based: discrete manufacturing, assembly
🔗 Related Calculators
Common Causes of High Scrap
- Material issues — incoming quality, wrong specs, storage damage
- Process issues — machine settings drift, worn tooling, wrong parameters
- Operator issues — unclear instructions, insufficient training
- Design issues — tight tolerances with incapable processes
Use a Pareto chart to find which 2–3 defect types cause 80% of scrap. Fix those first.
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