Calculator area of a polygon

Enter the length and the number of sides, enter the calculation accuracy and click on "Calculate". Calculator will calculate the area of the regular polygon.

Calculator perimeter of a regular polygon


area polygon
decimal places

Polygon - a closed polyline that does not have self-intersections.

A polygon with three vertices is called a triangle, four - quadrangle, with five - the pentagon, etc.

A polygon with n vertices is called the n-gon.

A convex polygon is called regular if it equal to all sides and all the angles, such as an equilateral triangle, square, and regular pentagon.

The area of the regular polygon is calculated by the formula: S=n/4s2cot(π/n)