How to use it
- Enter the cylinder diameter in inches.
- Enter the height or depth in feet.
- Enter how many cylinders you need.
- Click Calculate to view cubic yards, cubic feet, and 80‑lb bag totals.
What it does – The Cylinder Concrete Calculator takes the diameter (in inches), height (in feet) and quantity of cylinders you plan to pour, then instantly converts those dimensions into the concrete volume you’ll need.
Why it matters – Knowing the exact cubic yards prevents over‑ordering, saves money, and ensures you have enough material to finish without delays.
Reading the results – Cubic yards is the standard delivery unit for concrete trucks. Cubic feet lets you see the raw volume, and the 80‑lb bag count tells you how many pre‑mixed bags to purchase if you’re mixing on site. The bag number uses the industry standard that one 80‑lb bag yields about 0.6 ft³ of concrete, rounded up to the nearest whole bag.
The tool also handles multiple units automatically, so you don’t need to do any manual conversions. Simply input your numbers and let the calculator do the math, giving you a clear, actionable estimate you can trust before you place an order.
Pro tips
- Add 5‑10% extra for spillage and settling.
- Round up bag count to the next whole bag.
- Order bags in multiples of 5 for better pricing.
- Double‑check diameter units; mixing inches with feet will skew results.
Real-life examples
- Pouring a concrete footing for a new garage.
- Filling a decorative concrete planter for landscaping.
- Installing a concrete pad for a shed foundation.
Case study
Mike needed 2 concrete footings for his garage. Using the calculator he entered a 24‑in diameter and 3‑ft depth, quantity 2, and saw he required 0.8 cubic yards, 2.2 cubic feet, and 4 bags. He ordered 4 bags, saved a trip, and completed the job on schedule.