Rectangle Diagonal

Online calculator for quick determination of the diagonal length of a rectangle given the known side lengths.

Use our online calculator or calculate the square of each side, then add their values and take the square root of the sum. The resulting value will be the length of the rectangle's diagonal.
Formula: d = √(a^2 + b^2)

Side of the Triangle	Sides of the Right Triangle	Sides of the Isosceles Triangle	Side of the Square
Sides of the Rhombus	Sides of the Parallelogram	Cube Edge	Lateral Edge of the Parallelepiped

Rectangle Diagonal

Find the diagonal of a rectangle
knowing the side lengths

See also:

Rectangle Diagonal

Find the diagonal of a rectangle knowing the side lengths

See also:

Find the diagonal of a rectangle
knowing the side lengths