how to calculate the area of a circle



Radius:

Area

The area of your circle is .

Diameter

The Diameter is .

Circumference

The circumference of your circle is .


Calculator Use how find area of a circle

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter. how to calculate the area of a circle

How does it work ?

It will calulate your Area Of Circles Fast and Easy
Insert values on Parameters below then press Calculate

Example

geometry, the area enclosed by a circle of radius r is π r2. Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter.

Question : 6 Diameter

Result : 28.27 Area