materials
Material Wastage Calculator
Convert net quantity into purchase quantity, waste quantity, and waste cost.
Purchase quantity
540
Waste allowance
40
Allowance cost
NPR 4,800
Purchase cost
NPR 64,800
How this works
Purchase quantity = net quantity × (1 + waste%).
Worked example
Five hundred units with 8% waste requires 540 units; 40 units are the allowance.
FAQ
What is the Material Wastage Calculator used for?
Convert net quantity into purchase quantity, waste quantity, and waste cost. It is intended for quick planning, checking, and everyday decisions.
Can I use the result for a final contract or design?
Use it as a planning estimate. Base allowance on material, layout, handling, and actual site records rather than habit.
How can I improve the accuracy?
Use measured quantities, current supplier or lender rates, the correct units, and compare the result with drawings, invoices, or professional advice where the decision is safety-critical.