Calculate concrete volume for foundation walls, retaining walls or basement walls. Helps you order the right amount and avoid expensive short loads or waste.
Planning calculator only. Do not rely on this page alone for structural design, permitting, code compliance, engineering signoff, procurement quantities, or contractual commitments.
Wall volume = length × height × thickness, converted to cubic yards.
Enter job values, review the estimate, then use the decision hints before ordering or quoting.
| length | height | thickness Inches | yards |
|---|---|---|---|
| 40 | 8 | 8 | 7.90 |
| 25 | 6 | 12 | 5.56 |
Volume (cu ft) = Length × Height × ThicknessConvert to cubic yards by dividing by 27. Always add 8–12% for waste and overpour.
For retaining walls add footing volume separately
Estimate slab concrete before you call a ready-mix plant or decide whether bags are enough.
Estimate bricks and mortar for a wall build so you can plan quantities before final layout and waste adjustments.
Calculate concrete needed for curbs, gutters and driveway edges.
Yes — footings are usually poured with the wall. Add their volume separately.
8–12% extra is standard for walls due to form leakage and uneven pour.