Cone Volume Calculator
Volume and surface area of a cone.
Enter your values
Results update instantly as you type — no submit needed.
Results
- Volume
- 314.1593
- Slant height
- 13
- Lateral surface area
- 204.2035
- Total surface area
- 282.7433
- Base area
- 78.5398
Quick answer
A cone's volume is one third of the cylinder that contains it: V = ⅓πr²h.
V = (1/3)πr²h
How to use the Cone Volume Calculator
- 1Enter the base radius.
- 2Enter the vertical height (not slant).
- 3Read volume and surface areas.
Frequently asked questions
What is slant height?
The distance from the rim to the apex along the surface, √(r² + h²).
Why divide by 3?
A cone fills exactly one third of the cylinder with the same base and height.