# Surface Area Calculator

Surface Area=

Surface Area Calculator is a free online tool that displays the surface area of a sphere. BYJU’S online surface area calculator tool makes the calculation faster, and it displays the surface area in a fraction of seconds.

## How to Use the Surface Area Calculator?

The procedure to use the surface area calculator is as follows:

Step 1: Enter the radius in the respective input field

Step 2: Now click the button “Solve” to get the surface area

Step 3: Finally, the surface area of the sphere for the given radius will be displayed in the output field

### What is Meant by Surface Area?

In Mathematics, the surface area is defined as the total area region that the surface of the object occupies. The surface area is generally defined for three-dimensional objects/shapes. We know that the sphere is the three-dimensional form of a circle. The distance from the centre and the point on the surface of the sphere is called radius “r”. Thus, the formula to calculate the surface area of the sphere is given as:

The Surface Area of the sphere, SA = 4πr² square units