Concrete
Sonotube Concrete Calculator
Calculate concrete for cylindrical Sonotube (round tube) footings and columns.
Inputs
Live estimate
Concrete needed
0.13 cu yd
- Cubic feet
- 3.14
- Cubic yards
- 0.12
- 80 lb bags
- 6
- Estimated tons
- 0.26
- Material cost
- $21
- Total cost
- $21
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How it's calculated
Volume per tube = π × (diameter / 2)² × height.
Cubic yards = total volume ÷ 27, then × (1 + waste %).
Bags = ceil(cubic yards × 45) — assuming 80 lb bags.
Material assumptions
- Volume of a cylinder = π × r² × height.
- Concrete density: 2.0 tons per cubic yard.
- Common Sonotube sizes: 8, 10, 12, 14, 16, 18 inch diameters.
Frequently asked questions
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These results are estimates only. Confirm quantities, compaction, waste, and delivery requirements with your supplier or project professional before ordering materials.