Circumference of a Circle
Also known as: Circle Perimeter Formula
C = 2\pi r
C = 2πrWhat It Calculates
Calculates the perimeter (distance around) of a circle.
variables
| Symbol | Name | Description |
|---|---|---|
| C | Circumference | The distance around the circle |
| r | Radius | Distance from center to edge |
Worked Examples
1
C = 2 × π × 10 = 62.83Result: 62.83 units
Try a Calculator
Related Formulas
#geometry#circles#perimeter