ToolsGeometryCircle calculator
Circle calculator
Radius, diameter, area, circumference, arc, and sector. Nothing is sent to a server.
Circle
- Radius
- 5
- Diameter
- 10
- Area
- 78.53981634
- Circumference
- 31.41592654
- Arc length
- 5.23598776
- Sector area
- 13.08996939
- Sector (radians)
- 13.08996939