Concrete Calculator
Estimate bags of concrete and volume for slabs, footings, and tubes.
Dimensions
Total length of the slab or patio.
Total width of the slab or patio.
Depth/Height of the slab. Standard is 4 inches.
%
Recommended
0
bags80lb Bags (Pre-Mix)
0
60lb Bags
0
Cubic Yards
Visual Reference
Metric Bags
0bags
25kg0bags
40kgExact Volume
0ft³
Cubic Feet0m³
Cubic Meters Documentation
How It Works
We normalize all inputs to cubic feet/meters and then apply standard concrete yields.
Volume = L × W × T
+ Waste = Volume × 1.05
Yields Used:
80lb Bag ≈ 0.6 ft³
60lb Bag ≈ 0.45 ft³
25kg Bag ≈ 0.0115 m³
40kg Bag ≈ 0.0184 m³
Live Breakdown
Base Volume0 ft³
With 5% Waste0 ft³
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