Formula
How the project cost estimate works
- Material cost = area × material rate × (1 + waste %)
- Subtotal = material cost + labor cost + delivery
- Total = subtotal + contingency + tax
Free project planning tool
Project Cost calculator
Combine material waste, labor, delivery, contingency, and tax into a transparent planning total.
✓ Metric & imperial✓ Transparent assumptions✓ No signup
Materials & laborInstant estimate
Example calculation
For a 250 sq ft project with material at 4.25 per sq ft, labor at 3.50, 10% material waste, 100 delivery, 5% contingency, and 7% tax, the calculator builds each part into one clear planning total.
Planning tips
- Enter all rates in the currency selected; the calculator does not perform exchange-rate conversion.
- Use a contingency for small unknowns rather than hiding them inside material waste.
- Permits, equipment rental, design fees, and structural work may need separate line items.
Common questions
Project Cost calculator FAQ
Does changing currency convert the amounts?
No. The currency selector labels your estimate. Enter material, labor, and delivery costs in that same currency.
What contingency should I use?
A small, well-defined project may use a lower contingency than renovation work with hidden conditions. Choose a value that matches the project risk.
Is this a contractor quote?
No. It is a planning estimate based only on your inputs and should be compared with supplier prices and professional quotes.