Sector Area Calculator

Calculate the area of a circular sector using radius and angle

Radius (r)

Central Angle (θ)

Degrees Radians

Sector Area: 0 square units

Arc Length: 0 units

Understanding Sector Area

A sector is a portion of a circle bounded by two radii and the included arc. Think of it like a slice of pizza or pie.

For degrees:

Area = (θ/360°) × π × r²

For radians:

Area = (1/2) × r² × θ