# Circle Calculator

Calculate the circle. A circle is a collection of all points on a plane with the same distance (radius) up to a certain point, which is called the center. Enter any one value. Then click the “Calculate” button.

.**Circle Calculator**

**Radius (r)**

**Diameter (d)**

**Circumference length (L)**

**Square (S)**

**Formulas:**

d = 2 r

L = 2 π r

S = π r2