Unit Rate & Project Cost Calculator

Turn quantity and unit price into a transparent total with waste, contingency and tax allowances.

How it works

Turn quantity and unit price into a transparent total with waste, contingency and tax allowances.

Formula:
Adjusted quantity = Q × (1+waste); direct cost = adjusted quantity × unit price; total = (direct + contingency) × (1+tax).
Before you use the result: Prices, taxes and allowances change. Enter current project values; this tool is not a quotation or tender.

Practical use

Use current supplier quotations and contract-specific tax, waste and contingency assumptions. The calculator does not provide market prices.

  • Keep units consistent with the source information.
  • Use project-specific densities, pack sizes and coverage rates where provided.
  • Round purchasing quantities to supplier packaging and delivery rules.

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