Cylinder Cubic Footage Calculator
Find the volume of a cylinder (a round column, tank or hole) in cubic feet from its diameter and height.
Change the values and press Calculate to work out your own figures.
Enter the diameter and height.
Show the working
- volume = π × (diameter ÷ 2)² × height
How to use it
Enter the diameter and height.
Lengths can be decimals, fractions or tape entries such as 12' 6 1/2" (in feet or inches). Prices are optional.
Key facts
cubic feet = π × (diameter ÷ 2)² × height
Units
A cubic yard is 27 cubic feet, a cubic foot 1,728 cubic inches, and a cubic meter about 35.31 cubic feet. Lengths can be typed as tape readings such as 12' 6".
Questions
What is the volume of a cylinder 8 ft across and 3 ft tall?
150.7964 cubic feet.
Formulas
cubic feet = π × (diameter ÷ 2)² × height
Sources
Limitations
- Material densities are typical values (the midpoint of the commonly published range); real loads vary with moisture, grading and compaction, so check with your supplier or type in their density.
- Tank results are the geometric volume; real tanks have wall thickness and fittings.