Concrete Calculator
Accurately calculate cubic yards of concrete and how many pre-mixed bags you need for pours, slabs, footings, fence post holes, and retaining walls.
Cubic Yards (yd³) to Order
Based on 1.63 yards @ $135.00/yd³. Ready-mix trucks typically require a 3-yard minimum delivery.
How to Calculate Concrete: Formulas & Expert Pouring Tips
Concrete in North America is ordered by the cubic yard (which equals 27 cubic feet). For small jobs under 1 yard, pre-mixed bags (such as Quikrete or Sakrete) from hardware stores are cheaper and easier than ready-mix delivery trucks.
Example: A 10 ft × 10 ft patio at 4 inches thick = (10 × 10 × 0.333) ÷ 27 = 1.23 cubic yards.
Example: A 12-inch Sonotube (0.5 ft radius) that is 4 ft deep = (3.14159 × 0.25 × 4) ÷ 27 = 0.116 cu yards per pier.
Results are provided for general informational and educational reference only. While we strive for accuracy, Learntrix makes no guarantee of the correctness or completeness of these results for any specific purpose. Actual figures may differ based on your circumstances. Do not rely solely on these results for any significant decision.
Learntrix · Accuracy not guaranteed · For reference only
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