This online calculator calculates the radius of a circle from the given area of a circle.

### This page exists due to the efforts of the following people:

#### Timur

Created: 2020-03-09 09:42:50, Last updated: 2023-03-16 06:35:14

This content is licensed under Creative Commons Attribution/Share-Alike License 3.0 (Unported). That means you may freely redistribute or modify this content under the same license conditions and must attribute the original author by placing a hyperlink from your site to this work https://planetcalc.com/8639/. Also, please do not modify any references to the original work (if any) contained in this content.

I found that we still do not have a calculator that would calculate the radius of that circle based on the entered area of the circle.

The formula to calculate the area of a circle S is
$S=\pi R^2$
where π (pi) is a constant approximately equal to 3.14159, and R is the radius of the circle.

To find the radius of a circle from the given area, we can rearrange this formula as
$R=\sqrt{\frac{S}{\pi}}$

To use this calculator, the user would input the area of the circle, and the calculator would output the radius of the circle. Please note that the units of measurement are not present - this is because the units you use define the result's units. For example, if 10582 is square kilometers, then the answer is 58,038 kilometers. If 10582 is square miles - then the answer is 58.038 miles.