The Arc Length a Circle from the Chord and Radius calculator computes arc length of a circle based on the length of a chord (d) on a circle and the radius (r).
INSTRUCTIONS: Choose units and enter the following:
Arc Length of a Circle (a): The calculator compute the length in meters. However, this can be automatically converted to other length units via the pull-down menu.
The formula for the arch length from the length of a chord and radiusis:
where: