How to use it
- Enter the tube diameter in inches.
- Enter the depth in feet.
- Set the quantity of tubes and click Calculate.
The Sonotube Quikrete Calculator turns the dimensions of your concrete forms into three practical buying numbers: total cubic yards, the exact count of 80‑lb bags, and the volume in cubic feet. Knowing the cubic‑yard total helps you compare against delivery sizes and budget, while the bag count tells you how many standard Quikrete packages to order. The cubic‑foot figure is useful when you’re mixing on‑site or need to verify that the tube will hold the intended fill. Just type the tube’s diameter, the depth you plan to pour, and how many tubes you’re using. The tool instantly runs the volume math and applies the industry‑standard 0.6 ft³ per 80‑lb bag, so you get reliable numbers without guesswork. Use the results to order the right amount, avoid shortages, and keep your project on schedule.
Pro tips
- Add 5‑10% extra for spillage and settling.
- Round up the bag count to the next whole bag.
- Order bags in multiples of 5 to reduce shipping costs.
- Confirm the diameter is entered in inches, not centimeters.
Real-life examples
- A DIY homeowner estimating concrete for a fence footing.
- A contractor sizing multiple Sonotube columns for a new deck.
- A landscaper ordering material for a garden retaining wall.
Case study
Mike needed to fill three 12‑in × 4‑ft Sonotubes for a patio footings. Using the calculator he saw he required 1.3 cubic yards, which translated to 7 bags of Quikrete. He ordered exactly seven bags, avoided a last‑minute trip, and completed the footings on schedule.