Area of a square calculator - formulas and calculator for calculating square area. Area of a square - is a numerical characteristic characterizing the size of a plane bounded by four series-connected segments (sides) of the same length, whose opposite sides are parallel in pairs, and the angle between any two adjacent sides is 90 degrees.

Different formulas are used to calculate area of a square, depending on the known input data. Below are formulas and a calculator that will help you calculate area or check the already performed calculations.

Table with square area formulas (at the end of the page)

1

## Area of a square through its party

**a**- side

2

## Area of a square through its diagonal

**d**- diagonal

3

## Area of a square through perimeter

**P**- perimeter

4

## Area of a square through the piece which is carried out from square top to the middle of the opposite side

**k**- piece

5

## Area of a square through an inradius

**r**- radius of inscribed circle

6

## Area of a square through a circumradius

**R**- circumradius

Note:

If the angle is specified in radians in the source data, then for conversion to degrees you can use the formula:

## Table with square area formulas

initial data (active link to go to the calculator) |
sketch | formula | |

1 | side | ||

2 | diagonal | ||

3 | perimeter | ||

4 | line segment k |
||

5 | radius of inscribed circle | ||

6 | circumradius |