Concrete Footing Calculator
Enter the footing length, width and depth to estimate the concrete volume needed in cubic yards.
Concrete Footing Calculator
Estimate the concrete volume needed for footings.
This is an estimate for general informational purposes only, not an engineering specification. Footing dimensions should be determined by a structural engineer or local building code based on soil conditions and structural load — always add a small buffer (5-10%) for waste and spillage when ordering.
Footings are typically poured as long rectangular strips beneath foundation walls. This calculator computes the total volume and converts it to cubic yards, the standard unit for ordering ready-mix concrete.
Example
- With the default values shown above, this calculator returns: Volume (cubic feet) ≈ 88.89; Volume (cubic yards) ≈ 3.29.
Frequently Asked Questions
Why convert to cubic yards?
Ready-mix concrete is typically sold and delivered by the cubic yard, so converting your calculated volume makes it easy to order the right amount from a supplier.
Should I order extra concrete?
Yes — most contractors add a 5-10% buffer to account for uneven excavation, spillage, and minor measurement variance, since running short mid-pour is far more costly than having a small amount left over.