Estimate concrete material cost
Concrete Slab Cost Calculator
Use this concrete slab cost calculator to estimate the concrete material for a slab or other pour. Enter your supplier’s ready-mix quote or bag price in your currency; delivery, labor, and other job costs remain separate unless included in your price.
Slab / pad estimate
Measurement system: Imperial. Planning estimate based on the dimensions and allowance shown below.
Build your estimate
Choose a shape, enter measured dimensions, then review every step.
Enter the dimensions of the concrete itself. This estimate does not subtract posts or wall openings.
Bag yields and product settings
Yield differs by product. These common examples are editable.
Bag counts are rounded up. The 40, 50, 60, and 80 lb rows show common US products; use the package yield for your product.
Optional: price your materials
Enter local prices. No regional or supplier price is assumed.
Material estimate only. Delivery, taxes, labor, and supplier minimums are not included.
Calculation and assumptions
Material quantity multiplied by your price
Worked example: 1.36 yd³ at a quote of $165 per yd³
- Enter the formed dimensions and choose a planning allowance.
- The calculator carries the unrounded volume into the cost estimate.
- At an example price of $165 per yd³, 1.358 yd³ is about $224.07 for ready-mix material.
What this price does and does not include
- Enter prices from your own local supplier; no market price is assumed.
- Delivery, short-load fees, taxes, pump hire, labor, preparation, and finishing are separate unless you include them in your entered price.
- Compare quotes on the same basis, including the supplier's order increment and minimum load.
All example quantities are geometry and arithmetic illustrations. Confirm measurements, product yields, ordering rules, and project requirements with your plans and supplier.