Area Calculator

Calculates area and perimeter of various geometrical shapes. Useful to students and people working with land area measurements.

Input

Square

All four sides of a square has equal length.
Side Length

Rectangle

In a regular rectangle opposite sides are equal. However, in irregular rectangle such as land, sides can be of different lengths.
Sides
Side Length (AB)
Side Length (BC)

Triangle

Enter the length of sides of triangle.
Side Length (AB)
Side Length (BC)
Side Length (CA)

Circle

Enter the radius of the circle.
Radius (r)
Results
Shape
Area
Perimeter
Area in Other Units
Perimeter in Other Units
Figure
Use Unit Converter to convert values to different units.