Circular Arcs, calculator and formula

This calculator calculates various parameters for an arc of a circle. An arc of a circle is a part of a circle whose length is determined by the angle of the circle sector and the radius of the circle.

In the menu, select the two parameters that you know and enter their values, then click the 'Calculate' button.

Circular Arcs Calculator

Eingabe

Decimal places

Results

Angle α

Radius r

Chord c

Circular arc l

Formulas for the arc of a circle

Chord c

\(\displaystyle c =2· sin\left(\frac{α}{2}\right)·r\)

Circular arc l

\(\displaystyle l = 2·π·r ·\frac{α}{360} \)

Angle α

\(\displaystyle α = 2 · arcsin\left(\frac{c}{2 · r} \right)\)

Radius r

\(\displaystyle r = \frac{l · 360}{2·π·α}\)

Circular Arcs Calculator

Calculation of the arc of a circle

Formulas for the arc of a circle

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