Cylinder Volume Calculator
Free, with no sign up. Calculations run on your device; your entries stay in this browser.
Start with a cylinder. Measure the radius and perpendicular height in the same unit; radius is half the diameter. You can also select another solid.
Your result
Cylinder: V = π × radius² × height; radius = diameter / 2. 1 m³ = 1,000 L.
Primary source: Massachusetts DESE mathematics reference sheet (solid volume formulas).
Worked example
A cylinder 4 ft in diameter has radius 2 ft. With height 5 ft, it holds π × 2² × 5 = 20π ≈ 62.83185307 ft³, or approximately 1.779199915 m³.
For concrete quantities and bag counts, use the Concrete Calculator.
How to use this tool
Enter cylinder radius (half its diameter) and perpendicular height. Choose the length unit and Calculate to see cubic volume.
Frequently asked questions
What if I measured diameter?
Divide the diameter by two before entering radius. A 4 ft diameter has a 2 ft radius.
Does this calculate cylinder surface area?
No. This page computes the volume enclosed by a solid cylinder, not surface area.
What is the cylinder volume formula?
Volume equals pi times radius squared times perpendicular height. Use the same length unit for both dimensions.