Sector Perimeter Calculator
Calculate circular sector perimeter from radius and angle, radius and arc length, diameter and angle, or arc length and angle.
Sector perimeter from radius, arc, and angle
English results usually frame sector perimeter as the arc length plus the two radii. This calculator supports degrees and radians because both appear in geometry and engineering examples.
| Known values | First step | Output |
|---|---|---|
| Radius and angle | Find arc length | Sector perimeter |
| Radius and arc length | Recover central angle | Sector perimeter |
| Diameter and angle | Convert diameter to radius | Sector perimeter |
| Arc length and angle | Recover radius | Sector perimeter |
Sector formulas
P is sector perimeter; r is radius; L is arc length.
theta is the central angle in radians.
Frequently Asked Questions
Sources and References
- Circular SectorWolfram MathWorld
- Sector Area CalculatorOmni Calculator
- Circle CalculatorCalculator.net
Calculations are based on the listed reference sources. Links open in a new tab.
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