# Volume of Sphere

The **volume of a sphere** is a space, which we can fill in and which is bounded by a spherical surface. For example, when we want to count how much water we could insert into a spherical water container. To calculate the **volume of a sphere**, we need to know a length of its diameter or radius and use a formula of a **volume of a sphere**. The elementary unit of a volume is one cubic metre, it means the third power of one metre (1 m^{3}).

## Volume of Sphere - formula

**Volume of Sphere** = 1/6 × Ludolph's number × diameter^{3}

or

4/3 × Ludolph's number × radius^{3}

V = 1/6 × π × d^{3} = 4/3 × π × r^{3}