Circle Segment Calculator
Calculate circle segment area, arc length and chord length.
Enter radius and angle above.
How to Use the Circle Segment Calculator
Enter the circle radius and segment angle or other requested measurement to calculate segment area and arc information.
Practical Example
For a radius of 10 and a 60° central angle, the calculator estimates the area between the chord and the corresponding arc.
Factors That Affect the Result
Segment formulas depend on radius and angle definitions. Confirm whether the tool expects degrees, radians, chord length or segment height.
Frequently Asked Questions
What is a circle segment?
It is the region bounded by a chord and its arc.
Is a segment the same as a sector?
No. A sector is bounded by two radii and an arc.
What units are returned?
Area uses squared units and arc length uses linear units.