Wanting to calculate arc length? Use our arc length of curve calculator to do so, given the radius and the angle formed by the arc.

Arc length is a measure of the distance along the curved line of a circle and is an important concept in mathematics.

Radius (r)

:20

Angle (θ)

:45deg

Arc length (L)

:15.71m

Area of a Sector (A)

:157.1m2The distance that separates two points along a curve section is called arc length. Curve rectification approximates an irregular arc segment as connected line segments to determine its length.

The equation for the arc length of a circle is:

The equation for the area of the sector it creates is:

Where θ is the central angle in radians and r is the radius of the circle.

💬 We'd love your feedback on this template! It takes 1min