# Surface Area of Cube

To calculate the **surface area of a cube** we need to know a length of its edge. The **surface area of a cube** is information which is useful to determine how big amount of material we need to cover a cube or something what has the similar form. The elementary unit of the surface area is one square metre, it means the second power of one metre (1 m^{2}).

## Surface Area of Cube - formula

**Surface Area of Cube** = 6 × side length × side length

S = 6 × a × a = 6 × a^{2}