## About This Tool

The online Square Calculator is used to calculate the area, perimeter and diagonal of a square.

## Square

In geometry, a square is a regular quadrilateral which means that it has four equal sides and four equal angles.

## Formulas

The following is the calculation formulas of the area, perimeter and diagonal of square whose sides have length t:

The perimeter of a square

P = 4t

The area of a square

A = t^{2}

The diagonal of a square

D = √2 t

Where:

t = the side length of a square

P = the perimeter of a square

A = the area of a square

D = the diagonal of a square