# 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)

Side Length (CD)

Side Length (DA)

##### Diagonal

Diagonal Length (BD)

#### 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.