Work out craft material quantity instantly with clear inputs, formula shown and shareable results.
Net requirement is items times material per item, and the purchase quantity adds the waste percentage on top of that net figure. Buying the exact net length always ends a batch one item short, because offcuts and mistakes are certain rather than possible.
Purchase quantity
buy = items x material per item x (1 + waste %)
buy = items x material per item x (1 + waste %). Net requirement is items times material per item, and the purchase quantity adds the waste percentage on top of that net figure.
Buying the exact net length always ends a batch one item short, because offcuts and mistakes are certain rather than possible.
Enter items to make, material used per item, allowance for waste and offcuts. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.