Maths & numbers
Cone calculator
Calculate volume, slant height and surface area of a right cone.
A clear answer. Here’s how.
For a right circular cone, slant height = hypot(r,h), volume = πr²h/3 and total area = πr(r+slant height), including the circular base. Use matching units.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- Base radius
- 3
- Vertical height
- 4
Example result
- Volume
- 37.6991118431
- Slant height
- 5
- Curved surface area
- 47.1238898038
- Total surface area
- 75.3982236862