Geometry
Arc Length Calculator
Arc length from radius and central angle in degrees.
Free to use — no sign-up or login.
Arc length
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This free Arc Length Calculator covers Arc length from radius and central angle in degrees.
Arc length is the fraction of the circumference. Related geometry tools sit beside How it works, with no account required.
Using the Arc Length Calculator
Arc length from radius and central angle in degrees. Typical inputs are Radius r and Central angle (°). How it works beside the form states the identity the Arc Length Calculator applies.
FAQ
How do I use the Arc Length Calculator?
Open the Arc Length Calculator, fill Radius r and Central angle (°), and read the result. Arc length is the fraction of the circumference.
What formula does the Arc Length Calculator use?
The Arc Length Calculator uses the identity in How it works. In words: Arc length is the fraction of the circumference.