Circular Segment Calculator
Calculate the area, chord length, and arc length of a circular segment from radius and central angle.
- Chord length
- 14.1421
- Arc length
- 15.708
Formula: A = (r²/2) × (θ − sin θ), θ in radians
About Circular Segment Calculator
Circular Segment Calculator is a free online calculator that gives you an instant, accurate result as you type. Calculate the area, chord length, and arc length of a circular segment from radius and central angle.
The calculation uses the standard formula A = (r²/2) × (θ − sin θ), θ in radians and updates live with every change to the inputs. Everything runs client-side in your browser — fast, private, and free to use as often as you like.
A circular segment is the region between a chord and its arc — the shape of the liquid cross-section in a partly filled horizontal pipe.
Frequently Asked Questions
Is Circular Segment Calculator free to use?
Yes. Circular Segment Calculator is completely free, with no sign-up, no downloads, and no usage limits. You can use it as many times as you like on any device with a web browser.
How accurate is this calculator?
The calculator applies the standard formula (A = (r²/2) × (θ − sin θ), θ in radians) with full floating-point precision and rounds only the displayed result. For most practical purposes the results are exact.
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