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Concrete Calculator
Calculate concrete volume for slabs, footings, columns, and steps.
Shape
Slab
Footing
Column
Round Slab
Length (ft)
Width (ft)
Diameter (ft)
Depth / Thickness (inches)
Number of units
Calculate Concrete
Volume
Cubic meters
Cubic feet
With 10% waste
80-lb bags needed (~0.45 ft³/bag)
60-lb bags needed (~0.34 ft³/bag)