Sphere Volume Calculator

The volume of a sphere is four-thirds π times the radius cubed (V = 4/3 πr³). A ball with a 10 cm radius holds about 4,189 cm³ — over four liters.

Because the radius is cubed, small changes matter enormously: doubling the radius multiplies the volume by eight. This formula serves for balloons, tanks, planets and sports balls. The cylinder and cone volume calculators cover the other classic solids.