Cone Volume Calculator
Calculate the volume and slant height of a cone from its radius and height.
How to use this tool
- Enter radius and height in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your volume and the full breakdown beneath it.
Calculate cone volume = (1/3) × π × r² × h and slant height = √(r² + h²).
Frequently asked questions
- How do you calculate the volume of a cone?
- Volume = (1/3) × π × r² × h. The slant height l = √(r² + h²).