Construction Calculator
The everyday field math in one place: concrete volume in cubic yards (slabs, footings, and round columns) with pre-mix bag counts, aggregate and fill tonnage by material, and a unit converter covering length, area, volume, and weight.
Pour
Spillage / over-excavation allowance
Concrete Needed
Enter dimensions to calculate
Concrete adds a waste allowance you set (default 10%); bag yields assume ≈0.45 ft³ per 60 lb bag and ≈0.60 ft³ per 80 lb bag. Aggregate tonnage uses approximate bulk densities that vary with moisture, compaction, and gradation — treat tonnage as an estimate and confirm with your supplier.
Run your whole job on the same numbers
These NORDIX tools are a taste of the full platform — bid pipeline, estimating, and job costing that carry your numbers from the first bid to the final invoice.
See what NORDIX does →