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)

d = 2 r
L = 2 π r
S = π r2

S- area, L- diameter