A sphere is a perfectly round geometrical 3D object. The formula for its volume equals: volume = (4/3) × π × r³ Usually, you don't know the radius — but you can measure the circumference of the sphere instead, e.g., using the string or rope. The sphere circumference is the one-dimensional distance around the sphere at its widest point. The space occupied by a solid sphere is called the volume of the sphere . Learn how to deduce its formula and determine the volume of the sphere using examples. The volume of sphere is the space occupied by the sphere in 3-D plane. It is given by the formula 4/3 πr^3. Learn its Definition, Formula , and Derivation along with its Surface Area solved examples, and FAQs. Learn how to calculate the volume and surface area of a sphere with simple formulas . Find practical examples to understand these key geometric concepts easily.
