Concrete Slab Calculator Cost

Estimate concrete volume, order quantity with waste, ready-mix cost, labor or finishing cost, bag counts, and a branded report with a live 3D slab diagram.

Measurement inputs

Live calculation updates the cost, report, and 3D preview.

Live

Project name This name is used in the saved report.

Unit system

Bag estimate based on

Slab size

Length

Width

Thickness

Cost settings

Waste (%) 10% is common for many slab jobs.

Currency symbol Use $, £, €, AED, or your own symbol.

Concrete price

Concrete price basis

Labor / finish cost

Optional. Use 0 if you only need concrete material cost.

Labor / finish basis

Fixed / delivery cost

Optional. Add delivery, pump, small-load fee, or other fixed job cost.

Live 3D slab preview

Labels and arrows use your current measurements.

Length –

Width –

Thickness –

Estimated total slab cost

Includes concrete material, optional labor / finish cost, and fixed cost.

–

Order quantity with waste –

Concrete material cost –

Labor / finish cost –

Base slab volume –

Slab area –

60 lb bags –

80 lb bags –

Fixed / delivery cost –

Formula used

The same formula and steps appear in the PDF report.

Volume = Length × Width × Thickness

Total cost = Concrete material cost + Labor / finish cost + Fixed cost

All measurements are converted to feet for volume, square feet for area, and then converted to cubic yards and cubic meters.

Enter valid measurements to see the calculation steps.