Concrete Volume Calculator

Slab / Footing: Length × Width × Depth
Column: π × r² × Height
Waste factor: 10% added automatically
Bags: Based on standard yield per bag

Calculate concrete needed for slabs, columns, and footings in cubic yards, cubic feet, and pre-mix bag count.

Select Shape

Length (ft)

Width (ft)

Depth / Thickness (inches)

How It Works