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Volume

XX.XX cubic ft

Cubic Feet

YY.YY cubic yd

Cubic Yards

Bags of Concrete

NN (80lb mix)

Number of 80lb concrete bags required.

MM (60lb mix)

Number sof 60lb concrete bags required.

How the Sono Tube Calculator Works

1.

Choose a Mode: Use Basic for a quick estimate (enter diameter + height) or Advanced to include rebar, rebar diameter and other details for a more accurate quantity.

2.

Pick Units: Switch between Imperial and Metric for diameter and height inputs. The calculator converts everything internally so results are consistent.

3.

Enter Dimensions: Input the Sono Tube diameter and total height. In Advanced mode add number of rebar sections and rebar diameter — the calculator subtracts rebar volume from the concrete volume.

4.

Get Results: Instantly see concrete volume (cu ft and cu yd), estimated number of 80 lb & 60 lb bags, and an approximate total concrete weight. Results include a small waste allowance recommendation — adjust in Advanced mode if needed.

Why Builders & DIYers Love Our Calculator

"Saved me a ton of time — quick, accurate bag counts and I finally stopped over-buying concrete."

— Mark, Contractor

"Perfect for DIY fence posts and porch piers. The advanced mode helped me account for rebar and reduced waste."

— Emily, Homeowner

FAQ

Frequently Asked Questions

A Sono Tube calculator is an essential tool for builders and DIYers to determine the exact volume of concrete required for cylindrical forms. This is crucial for accurately purchasing materials and avoiding waste.
1. Enter the diameter (width) of your Sono Tube.
2. Enter the height or depth of the footing.
3. Input the total number of tubes for your project.
4. The calculator instantly provides the total volume of concrete required.
Accurately calculating the volume ensures you purchase the correct amount of concrete mix. Underestimating can cause project delays, while overestimating leads to wasted material and unnecessary costs. It's crucial for budgeting and project planning.
The primary calculation gives you the total volume needed (e.g., in cubic feet or yards). Many calculators also include a feature where you can select your concrete bag size (e.g., 60lb or 80lb) to get an accurate count of how many bags you'll need to purchase.