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Concrete Calculator

Inputs

Length(ft)

Length of the concrete area in feet

Width(ft)

Width of the concrete area in feet

Depth(in)

Depth or thickness of concrete in inches

Unit System

Choose metric or imperial units

Waste Factor(%)

Additional percentage for spillage and uneven surfaces

Base Volume

—

Total Volume with Waste

—

Volume needed including waste factor

Waste Amount

—

Bags Needed (80 lb)

—

Formula

Volume = (Length × Width × Depth/12) ÷ 27 for imperial; Total = Base × (1 + Waste%)