Concrete Calculator

Estimate concrete yardage, bag counts, and material cost for a slab.

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Cubic yards2.47 yd³

Cubic feet66.67 ft³

60 lb bags149

80 lb bags112

Material cost (est.)$370.37

Add 5-10% for waste. Price varies by region and mix.

A 60 lb bag covers about 0.45 cubic feet; an 80 lb bag about 0.6 cubic feet. Divide your total cubic feet by those numbers and round up.

Patios and walkways: 4 inches. Driveways: 4-6 inches. Heavy structures: 6+ inches with rebar or wire mesh.