Enter the Length of side ‘ l ‘ =

Enter the Number of Sides ‘ N ‘ =

Area of Polygon (using length of the side) =

Area of polygon (using apothem and length of a side) =

Perimeter of Polygon =


Polygon Calculator is a free online tool that displays the area and a perimeter of a polygon. BYJU’S online polygon calculator tool makes the calculation faster and it displays the area and the perimeter of a polygon in a fraction of seconds.

How to Use the Polygon Calculator? 

The procedure to use the polygon calculator is as follows:

Step 1: Enter the number of sides and side length in the input field

Step 2: Now click the button “Calculate” to get the polygon area and perimeter

Step 3: Finally, the area and the perimeter of a polygon will be displayed in the output field

What is Meant by Polygon?

In mathematics, a polygon is a closed two-dimensional flat-shaped figure. It does not have a curved surface. A polygon can be classified as regular polygons and irregular polygons. The regular polygons have equal sides and angle measurement, whereas the irregular polygon has different side and angle values. The polygon with the least number of sides is a triangle and the polygon with “n” number of sides is called n-gon. The perimeter and the area of the regular polygon formula are given as follows:

Area of regular polygon = [s2n]/[4tan(180/n)] square units

The perimeter of regular polygon = n × s units


“n” is the number of sides

“s” is the side length

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