Circumference of a 9 Inch Diameter Circle
What is the circumference of a circle with a diameter of 9 in? How far around is a circle that is 9 inches across?
Circumference of a 9″ diameter circle
|2′ 4.274″||feet and inches|
results may be rounded
Circumference of a Circle Formula
The circumference of a circle is pi times its diameter.
Circumference = π * Diameter
Diameter of a Circle
The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.