Concrete Volume Calculator
Calculate concrete needed in cubic yards and bags for slabs, footings, and columns. Includes waste factor and cost estimates.
Slabs and footings use length × width × thickness. Columns use diameter × height.
Length of the slab in feet
Width of the slab in feet
Standard slab thickness: 4 in for patios/sidewalks, 6 in for driveways
Extra material to account for spillage, uneven ground, and form irregularities. 10% is standard.
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