Circumference of a 45 Centimeter Diameter Circle
What is the circumference of a circle with a diameter of 45 cm? How far around is a circle that is 45 centimeters across?
Circumference of a 45cm diameter circle
|4′ 7.658″||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.