WT-054
YDS
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Concrete Calculator
Estimate concrete cubic yards, cubic feet, and common bag counts for rectangular slabs and round pours.
CONCRETE
LOCAL
NO DATA SENT
CONCRETE BENCHSLAB / ROUND / YARDS / BAGS
INPUTENTER THE FINISHED CONCRETE DIMENSIONS
The extra percentage is added after the geometric volume is calculated.
BASE VOLUME—
WITH EXTRA—
80 LB BAGS—
60 LB BAGS—
HOW IT WORKSVOLUME → CUBIC FEET → CUBIC YARDS
READYEnter project dimensions to estimate concrete volume.
LOCAL TOOL: Project dimensions stay in your browser. Bag yields are approximate; always use the yield printed on the actual mix you plan to buy.
FIELD NOTE / 054
Concrete volume is the finished shape volume plus a practical allowance.
For a rectangular slab, multiply length × width × thickness. For a round pour, use the area of the circle × depth. The calculator converts the result to cubic yards and also estimates common 60 lb and 80 lb bag counts.