About this tool: Circle Sector Calculator
Calculate the area, arc and chord of a circle sector from radius and central angle.
The central angle can range from zero to 360 degrees. A sector with 90 degrees is one quarter of a circle; with 360 degrees it is the whole circle. The arc follows the circumference, while the chord is the straight line joining its endpoints.
How the calculation works
Worked example
| Radius | 5 |
| Angle, ° | 90 |
S ≈ 19.6349540849; L ≈ 7.85398163397
Questions and answers
What does this tool do?
Calculate the area, arc and chord of a circle sector from radius and central angle. The central angle can range from zero to 360 degrees. A sector with 90 degrees is one quarter of a circle; with 360 degrees it is the whole circle. The arc follows the circumference, while the chord is the straight line joining its endpoints.
What affects precision and input format?
Floating-point results are rounded for display. Keep the units shown in the input labels; decimal points and decimal commas are accepted.
Where are the calculations performed?
The calculation runs in your browser. You can use the tool without installing software.
Asted Cloud
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