Rectangle Calculator

This rectangular calculator can help you calculate the area, perimeter, diagonal, length or width of a rectangle if you know the required dimensions.


I want to solve for:*
Length (l):*
Width (w):*

Other Tools You May Find Useful

■ Law of Sines Calculator

■ Circle Calculator

■ Square Footage Calculator

■ Triangle Calculator

How does this rectangle calculator work?

Depending on the dimension to be determined, this rectangle calculator uses the formulas explained here:
■ In case you select to solve for area (A) you have to provide the length (l) and the width (w) then:

Rectangle Area Formula based on length (l) and width (w)

■ If you want to calculate the perimeter (P) you have to input the length (l) and the width (w):

Rectangle Perimeter Formula based on length (l) and width (w)

■ In case you try to compute the diagonal of the rectangle (d) then you have to input the same two figures (its length and width) then:

Rectangle Diagonal Formula based on length (l) and width (w)

■ If you want to determine the length (l)then you have to know the width (w) and the diagonal (d) of the rectangle:

Rectangle Length Formula based on width (w) and diagonal (d)

■ In case you want to estimate the width of the rectangle (w) then you have to specify its length (l) and diagonal (d):

Rectangle Width Formula based on length (l) and diagonal (d)

07 Aug, 2015