Sphere Calculator
Calculate volume and surface area from radius.
Formula
V = (4/3)πr³, SA = 4πr²
Volume is four-thirds pi r cubed. Surface area is 4 pi r squared.
Examples
r=1
r=5
r=10
Frequently Asked Questions
What is the volume of a sphere?
V = (4/3)πr³, four-thirds times π times the radius cubed.
What is the surface area of a sphere?
SA = 4πr², four times π times the radius squared.
About this Calculator
Calculate volume and surface area from radius. All calculations are performed in your browser for instant results. Formulas are mathematically exact using JavaScript's built-in Math functions.