Concrete Circle Calculator
Concrete circle calculator: enter the dimensions to get cubic yards, 80 lb/60 lb bag counts and an estimated cost.
Runs locally in your browser — no upload, no trackingTry: Diameter=10, Thickness=4, Waste allowance=10 → 28.8 ft³, 1.07 yd³, 48 (≈48), 64 (≈64), $160
How to use
Use this for round pads under a gazebo, a circular patio, or a pier footing. Diameter is the full width across the circle; thickness is the pour depth in inches. Press Calculate for cubic yards, bag counts and a rough cost. All math runs in your browser.
FAQ
How do I calculate concrete for a circle?
Enter your dimensions in feet (and thickness in inches), add a 10% waste allowance, then the calculator converts the volume to cubic yards by dividing cubic feet by 27. Bag counts use ~0.6 ft³ per 80 lb bag and ~0.45 ft³ per 60 lb bag.
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