# How to Calculate Radius of Circle

How to find the radius of a circle?

## Radius of Circle Calculation

Radius of a circle is the distance from the center of the circle to the point on the circle. It is represented using the letter **r**.

Learn here on how to calculate the radius of a circle given the diameter.

**Formula:**

**Radius of Circle r = Diameter (D) / 2**

Let us consider an example to find the radius of the circle whose diameter is 8.

r = D / 2

= 8/2

= 4

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