A circle is formed by combining a set of all points in a plane that are at a given distance from the centre point. The distance around a circle (i.e) its perimeter gives you the circumference. An online geometry calculator to calculate the diameter of a circle based on the circumference. Just input the circumference value in the input field and the diameter of a circle from circumference calculator will automatically update you with the circle diameter.
Calculate diameter of a circle from circumference of 20.72 cm.
D =20.72 / π