Circumference of a 9 Centimeter Diameter Circle
What is the circumference of a circle with a diameter of 9 cm? How far around is a circle that is 9 centimeters across?
Diameter
cm
Diameter
ft
in
Diameter
meters
Units
Circumference of a 9cm diameter circle
28.274 | centimeters |
0.28274 | meters |
0.92764 | feet |
11.132 | inches |
0′ 11.132″ | 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.