Arc Length Calculator
Radius (r)
units
Angle (θ)
Radius (r)
units
Chord Length (c)
units
Diameter (d)
units
Angle (θ)
Results
Formulas Used
- Radius & Angle: L = r × θ (where θ is in radians)
- Radius & Chord: L = 2r × arcsin(c/(2r))
- Diameter & Angle: L = (d/2) × θ (where θ is in radians)
Note: For angles in degrees, multiply by π/180 to convert to radians.