Online Calculators > Math Calculators > Square in a Circle CalculatorSquare in a Circle Calculator
Square in a circle calculator calculates the area and the perimeter of the biggest square in a circle.
Side Length of Square 

Area of Square 

Perimeter of Square 

To find out the biggest square in a circle,
we need to know the radius of the circle.
the length of the largest square is calculated as:
L = r x √2
Therefore, the area of the square is:
A = (r x √2)^{2}
A = 2r^{2}
The perimeter of the square is:
P = 4 x (r x √2)
