Area of a Circle Calculator is a free online tool that displays the area of a circle for the given radius. CoolGyan’S online area of a circle calculator tool makes the calculation faster, and it displays the area in a fraction of seconds.

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

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

**Step 1:** Enter the radius in the respective input field

**Step 2:** Now click the button “Calculate” to get the area

**Step 3:** Finally, the area of a circle for the given radius will be displayed in the output field

### What is Meant by the Area of a Circle?

In mathematics, the area of a circle is defined as the number of square units that cover inside the circle. The region occupied by the circle in the two-dimensional space is called the area of a circle. The area is represented by the square units. A circle is a closed figure where all the points on the circumference of the circle are equidistant from the point called the centre. The distance between the centre and the circumference is called the radius. The formula to calculate the area of the circle is given as:

Area of a circle, A = πr^{2} square units

Where “r” is the radius of the circle.