Calculate total concrete needed and include waste allowance for construction planning.
Overview
Concrete ordering accuracy reduces cost overruns and on-site delays.
This calculator converts geometric dimensions into total pour volume.
Add a waste factor to account for spillage, uneven subgrade, and form variations.
Steps
Choose slab, footing, column, or custom form.
Input length, width, depth, or diameter and height.
Compute cubic measure of concrete required.
Increase total by planned overage factor.
Translate volume into purchase quantity.
Math
Volume = Length * Width * Depth (for slabs)
Concrete requirement is geometric volume plus optional waste adjustment.
Worked cases
20*10*0.5
100 cubic ft
100/27
3.70 cubic yards
3.70*1.10
About 4.07 yd3 order
Why use this
Questions