Arc Length Calculator
Calculate the length of an arc by entering the radius and central angle. Get instant results with our free calculator.
Understanding Arc Length
An arc length is the distance along a section of a curve. In the context of circles, it's the distance along the circumference between two points. The arc length is determined by both the radius of the circle and the central angle that defines the sector.
Key Concepts
- • The arc length formula is: s = r × θ (where θ is in radians)
- • To convert degrees to radians: multiply by π/180
- • A full circle has an arc length equal to its circumference (2πr)