# Area of A Sector Calculator

Length of the Radius (r):

Angle at the center (theta): (radians / degrees)

Area of the Sector (if theta is in ‘radians’) := Square units

Area of the Sector (if theta is in ‘degrees’) := Square units

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

## How to Use the Area of a sector Calculator?

The procedure to use the area of a sector calculator is as follows:

Step 1: Enter the arc length and theta value in the input field

Step 2: Now click the button “Calculate” to get the area of a sector

Step 3: Finally, the area of a sector will be displayed in the output field

### What is Meant by Area of a sector?

In mathematics, the area of a sector is proportional to the arc length. It is also known as the sector area. Generally, the sector is defined as the part of a circle, which is enclosed by the two radii and the intercepted arc. In other words, the sector is the pie-shaped part of the circle. Thus, the area of the sector defines the area enclosed by the sector, which is proportional to the sector arc length.