We all know that the length of an arc depends on the radius of a circle and the central angle Θ. We have studied this in our mensuration classes. It is known that for the angle equal to 360 degrees (2π), the arc length is equal to circumference (2πr).

Also, the area of a sector, the length of an arc and the area of a circle sector can be calculated using this easy to use, friendly and handy arc length calculator.

1. First you need to decide on the radius of your circle (you can also input the diameter into the area of a sector calculator instead).

2. Next you need to determine what will be the angle between the ends of the arc.

3. Now we calculate the arc length according to the formula above.

4. We are also required to calculate the area of a sector.

The arc length calculator can also be used to find the central angle or the radius of the circle. Simply input any two values into the appropriate boxes and watch it conducting all calculations for you.