Arc Length Calculator
Calculate arc length, sector area, and chord length given radius and central angle.
Input Values
Arc Length Formula
s = r x theta = 10 x 0.7854
Visual Representation
Arc Length
7.8540
12.50% of circumference
Arc Length
7.8540
Chord Length
7.6537
Sector Area
39.2699
Circumference
62.8319
Angle Conversion
Degrees
45.00
Radians
0.7854
Arc Length Formulas
Arc Length
s = r x theta
theta in radians
Sector Area
A = (1/2) x r^2 x theta
Chord Length
c = 2r x sin(theta/2)
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Handbook of Mathematical Functions
by Abramowitz & Stegun
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.