Concrete Depot Concrete Calculators & Tools

Concrete Driveway Calculator

Estimate driveway concrete volume, waste, ready-mix order quantity, bag count, gravel base, and cost with a live 3D driveway diagram.

Measurement inputs

Enter the driveway size. Results update as you type.

Live calculation
Normal driveways often start around 4–5 in thick.
Enter a length greater than 0.
Enter a width greater than 0.
Enter a thickness greater than 0.
Optional. Use 0 if no base estimate is needed. Base depth cannot be negative.
Waste cannot be negative.
Optional concrete price. Cost cannot be negative.

Live 3D driveway preview

The same SVG is used in the report.

Length 40 ft
Width 18 ft
Concrete 5 in
Base 4 in

Order quantity with waste

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Enter valid driveway measurements to calculate concrete.

Base concrete—
Cubic feet—
Driveway area—
Gravel base—
Estimated cost—
40 lb bags—
60 lb bags—
80 lb bags—
Thickness guide—
Formula used
Concrete volume = Length × Width × Thickness
Cubic yards = Cubic feet ÷ 27
Order quantity = Base volume × (1 + waste %)

All measurements are converted to feet before calculation.

Calculation steps
  1. Enter valid driveway measurements to see steps.
This calculator gives an estimate for planning. Confirm slab thickness, reinforcement, slope, sub-base, and final order quantity with a contractor, engineer, or concrete supplier.