Concrete Calculator

Calculate concrete volume for slabs, columns, and footings

Length (ft)

Width (ft)

Depth/Thickness (ft)

About

Slab/Footing: V = L × W × D. Column: V = π × r² × h. 1 cubic yard = 27 cubic feet. A 60-lb bag covers ~0.45 cu yd; 80-lb bag ~0.60 cu yd. Standard slab thickness: 4 inches (0.333 ft).