Concrete Calculator

Cubic yards, cubic feet and bag count for a slab or pour.

Depth is in inches — a typical driveway or garage slab is 4-6 inches.

How the Concrete works

Volume is length × width × depth in feet. Concrete is sold by the cubic yard (27 cubic feet), and an 80 lb bag yields about 0.6 cubic feet.

yd³ = (L × W × D in ft) ÷ 27

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