The area of a circle calculator helps you compute the surface of a circle given a diameter or radius.
Our tool works both ways — no matter if you're looking for an area-to-radius calculator.
Area of a circle the area of a circle is the plane region bounded by the circle's circumference.
The region shaded in gray inside of circle a above is its area.
The area of a circle can be found.
Although often referred to as the area of a circle in informal contexts, strictly speaking, the term disk refers to the interior region of the circle, while circle is reserved for the boundary only,.
The area of a circle is the space enclosed within the boundary of a circle.
It is calculated using the formula a = πr^2, where 'r' is the radius of the circle.
It is measured in square units.
See how to calculate the area below, but first the calculator:
Enter the radius, diameter, circumference or area of a circle to find the other three.