Circle Area Calculator

Quickly calculate the area of a circle by entering its radius. Visualize the circle and copy the result with ease.

Enter the radius of the circle to calculate its area.

Visualization

About Circle Area

The area of a circle is the region enclosed within its circumference. It's a fundamental concept in geometry, calculated using the formula: A = πr², where A is the area and r is the radius of the circle. The constant π (pi) is approximately 3.14159. This calculator simplifies the process, allowing you to quickly find the area by just inputting the radius. Understanding circle area is crucial in various fields, from construction and engineering to design and even everyday life applications like calculating pizza sizes or garden areas.

For more in-depth information, you can refer to resources like: