Cone Volume Calculator
Calculate the volume and surface area of a cone from its radius and height or slant height, free and instant right in your browser.
Enter Values
Shape
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How to use this calculator
- Enter the base radius and the height.
- Press Calculate for the volume.
How it works
A cone holds exactly one third of the cylinder with the same base and height: (1/3) × π × radius² × height.
Worked example
Radius 1 m, height 3 m. Volume = (1/3) × π × 1² × 3 = 3.1416 m³.
Frequently asked questions
Why is a cone a third of a cylinder?
A cone with the same base and height holds exactly one third of that cylinder — that's where the (1/3) in the formula comes from.
Which height do I enter?
The vertical height from the base to the tip, measured straight up — not the slant height along the side.
Related tools
- Cylinder Volume Calculator
- Sphere Volume Calculator
- Pyramid Volume Calculator
- Torus Volume Calculator
- Hemisphere Volume Calculator
- Rectangular Prism Volume Calculator
Explore more in Geometry, Shape, Area & Volume.
Cite this tool
Zerdly. (2026). Cone Volume Calculator. Retrieved from https://www.zerdly.com/tools/cone-volume-calculator/
Tip: Enter any known values to calculate the remaining results.
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