The area of a (rectangular) square

Square

Calculation formula

Formula for finding the area of a rectangle by its sides:

S = a ⋅ b

Where a and b are the sides of the rectangle

Formula for finding the area of a rectangle by diagonals and the angle between them:

S = d2 ⋅ sin(a) / 2

Where d is the diagonal; a is the angle between the diagonals.

The area of a (rectangular) square online calculator

To find the area of a rectangle, enter the length of the sides in the appropriate fields. You can also calculate the area in the units of measurement you need