Formula used
Cubic yards = [length × width × (thickness ÷ 12) ÷ 27] × (1 + waste ÷ 100)
Worked concrete driveway material cost example
Concrete Driveway Material Cost Calculator example: 23.4 ft × 10.3 ft × 4 in ÷ 12 ÷ 27 × 1.1 = 3.27 yd³. The same volume is about 149 80-lb premixed-concrete bags or 196 60-lb bags using the calculator's bag-yield constants.
From calculated volume to an order
Use the result as a ready-mix material line item, then obtain separate local quotes for preparation, placement, finishing, joints, reinforcement, disposal, and permits.
Where a concrete takeoff can drift
Aprons, thickened edges, slope, base tolerance, minimum-load fees, short-load charges, pump service, delivery time, reinforcement, forms, labor, and tax affect project cost.
Questions specific to this calculation
Which driveway costs are excluded from the material subtotal?
Measure the driveway by thickness zones and use the ready-mix price per cubic yard. The displayed cost covers concrete material and the entered allowance only.