Calculate the concrete needed for round columns, sonotubes, or piers. Enter the diameter and height of your column along with the number of columns to get total volume.
Enter Your Measurements
Results
Total Concrete Needed
0.47
cubic yards
With 10% Overage
0.51
cubic yards
Per Column
3.14
cubic feet
Total Volume
12.6
cubic feet
80 lb Bags
21
bags
Cost Estimate
per cubic yard
Estimated Cost
$69.81
Formula
How to Use This Calculator
How to Use
- 1
Enter the diameter of the column in inches.
- 2
Enter the height (depth) of the column in inches.
- 3
Enter the number of columns.
- 4
Results show per-column and total concrete needed.
Frequently Asked Questions
Frequently Asked Questions
What size sonotube do I need?
How deep should pier footings be?
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About This Calculator
This calculator uses the formula: Volume = π × (Diameter ÷ 2)² × Height (per column). All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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