Enter the sphere's radius and the calculator instantly returns its volume, surface area, diameter and great-circle circumference.
From the radius it returns volume, surface area, diameter and the great-circle circumference.
Volume = (4/3)πr³ and surface area = 4πr², with diameter = 2r and great-circle circumference = 2πr.
The largest circle that can be drawn on a sphere, passing through its center; its circumference is 2πr.