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Rectangle calculator - diagonals, area, perimeter, circumference, sides


Rectangle calculator will help you calculate the diagonal of the rectangle, the side length, height, area of the rectangle.

rectangle




Rectangle area



$$ \Large{S=a\cdot b} $$
Side length (a)

Side length (b)

Rectangle area (S)



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Circumference / perimeter of a rectangle



$$ \Large{S=2 \cdot (a+b)=2a+2b} $$
Side length (a)

Side length (b)

Perimeter of a rectangle (L)




Diagonal of the rectangle



$$ \Large{d=\sqrt{a^2 + b^2}} $$
Side length (a)

Side length (b)

Diagonal (d)






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