Sector Calculator
Calculate area, arc length, and perimeter of a circular sector
Area of Sector
0.00
cm²
Arc Length
0.00
cm
Perimeter
0.00
cm
Central Angle
0.00
degrees
Sector Formulas
Area (degrees): A = (θ/360°) × πr²
Area (radians): A = ½ r²θ
Arc Length (degrees): L = (θ/360°) × 2πr
Arc Length (radians): L = rθ
Perimeter: P = 2r + L
Enter values and click Calculate to see detailed steps.