Calculator of the circle perimeter

Enter the radius, enter the calculation accuracy and click on "Calculate". The calculator will calculate the circumference.

Calculator area of a circle


perimeter circle
decimal places

Circle - a geometric figure bounded by a circle. In other words, the circle - this is the set of all points in the plane whose distance to a given point (the center circle) does not exceed a predetermined distance (radius). The circumference of a circle is the limit.

Circle - a centrally symmetric figure.

When you rotate the plane of the center of the circle moves in on itself.

The circle is the convex figure.

Perimeter of a circle is called the circumference, it is limited. Calculated by the formula: P=2πr