CIRCULAR SLAB ESTIMATION SHOPPING LIST
Generated on:
📐 Circular Slab Dimensions
FT
IN
Add 10% Waste Buffer
Highly recommended to cover spills, uneven subgrade, & cuts.
💲 Material Cost Settings (Optional)
Total Required Volume
0.00
Cubic Yards
Base Volume:
Total (inc. buffer):
🛒 Dry Mix Bag Options
0 Bags
80 lb bags needed (0.60 cu. ft. yield)
Est. Cost
$0.00
0 Bags
60 lb bags needed (0.45 cu. ft. yield)
Est. Cost
$0.00
Est. Material Cost Range
$125 - $150 / yd³
Bulk Concrete Cost
Circular Concrete Slab Calculator
This dedicated round concrete calculator determines the cubic yards, cubic feet, and number of concrete dry bags (80lb / 60lb) required for circular slabs, round patios, tube pillars, columns, post holes, and cylinder foundations.
To calculate the volume of a circular pour, we find the area of the circle using the radius (half of the diameter) and multiply it by the thickness or depth of the pour:
Circular Estimation Formula:
Radius (ft) = Diameter (ft) ÷ 2
Area (sq. ft.) = π × Radius²
Volume (yd³) = [ Area (sq. ft.) × (Depth (in) ÷ 12) × Quantity ] ÷ 27
Area (sq. ft.) = π × Radius²
Volume (yd³) = [ Area (sq. ft.) × (Depth (in) ÷ 12) × Quantity ] ÷ 27
SPECIFICATIONS & ESTIMATES
| Calculation Mode | Circular Slab |
|---|---|
| Dimensions | Diameter: ft @ in (Qty: ) |
| 10% Waste Buffer | |
| Total Volume Required | Cubic Yards ( cu. ft.) |
| 80lb Bags Required | Bags (Est: $) |
| 60lb Bags Required | Bags (Est: $) |