Enter total footing length, width, depth and the number of matching runs to estimate order volume.
Results use your measurements and editable assumptions. Verify product coverage, density, waste and order rounding with the supplier before purchasing.
Volume = total run length × footing width × footing depth × quantity.
BuildCalc converts measurements to a consistent internal unit, applies your project geometry and only then adds the selected waste allowance. Packaging quantities are rounded up because partial bags, blocks or boxes usually cannot be ordered.
Use the footing calculator for continuous rectangular runs that share the same width and depth. Add the lengths of matching runs, enter dimensions from the project requirements, and calculate isolated pads, piers or stepped sections separately. The result is a quantity estimate, not a foundation design.
Two 40 ft runs that are 16 in wide and 8 in deep contain about 71.1 cubic feet, or 2.63 cubic yards, before waste. A 10% allowance raises the planning quantity to roughly 2.90 cubic yards.
No. It only calculates volume from dimensions you provide. Footing width, depth, reinforcement and concrete strength require project-specific design and code review.
Divide the footing into sections with consistent dimensions, calculate each section separately and add the resulting volumes.
Published and maintained by EasyTool.me. Review the calculation methodology, verify product-specific values with the supplier, and report reproducible corrections. Last materially reviewed August 16, 2026.