Cone Calculator
Calculate volume, surface area, and slant height from radius and height.
Formula
l = √(r²+h²), V = (1/3)πr²h, SA = πr(r+l)
Slant height l = √(r²+h²). Volume is one-third pi r squared h. Total surface area includes the base and lateral face.
Examples
r=4, h=9
r=3, h=4
r=6, h=8
Frequently Asked Questions
What is the volume of a cone?
V = (1/3)πr²h, one-third of the equivalent cylinder.
How is the slant height of a cone calculated?
l = √(r² + h²) using the Pythagorean theorem.
What is the surface area of a cone?
SA = πr(r + l), where l is the slant height.
About this Calculator
Calculate volume, surface area, and slant height from radius and height. All calculations are performed in your browser for instant results. Formulas are mathematically exact using JavaScript's built-in Math functions.