Free Rectangle Width & Length Calculator - calculate width & length of a rectangle step by step This website uses cookies to ensure you get the best experience. The perimeter of a square is the length of this square. Then click enter or “Calculate” button. The formulas for the perimeter P and the area A of the rectangle are used to write equations as follows: P = 2 * L + 2 * W Online calculator to calculate the dimensions (length and width) of a rectangle given the area A and perimeter P of the rectangle. Rectangle is a two dimensional plane or geometric shape with 4 straight sides and 4 right angle (90º) corners. Example, enter “5” in “a / width” and “8” in “b / height” of the rectangle. Example of the usage of calculator online to count the Area and Perimeter of Rectangle. About Rectangle Calculator tool. Just type … The perimeter of a square is given by the formula `4*a` where a is the length of a side. This calculator will calculate the perimeter of a rectangle given the length of its sides. Adjacent sides of a rectangle is unequal and opposite sides are parallel to each other. By … Remember this tool should be used only to calculate area, perimeter or volume of a figure. The results we provide are accurate, but rounded to the 12th decimal place. 1. Since the opposite sides of the rectangle are of equal length, the perimeter of the rectangle is given as The perimeter of rectangle, P = 2 (Length + Width) units. The perimeter of the rectangle is the sum of the sides of the rectangle. The calculation of the perimeter of a rectangle whose length is 3 and width is 2 is done by entering the following formula perimeter(`3;2`). BYJU’S online perimeter of a rectangle calculator tool makes the calculation faster and it displays the perimeter of the rectangle in a fraction of seconds. Perimeter of a Rectangle Calculator is a free online tool that displays the perimeter of a Rectangle for the given length and width. K-12 students may refer the below formulas of rectangle to know what are all the input parameters are being used to find the area, perimeter, diagonal, length or side of a rectangle. The formula for the perimeter of a rectangle is almost as easy as the equation for the perimeter of a a square. It supports different units such as meters, feet, and inches. The rectangle perimeter calculator automatically gives values for any rectangle given the measurements X and Y, for the length of any two of its adjacent sides.It also gives the area, the diagonal length, the angle of the diagonal, and a circumcircle radius, all convertible in both metric and imperial units. 3. You will find the answer right there on the Area A column and Perimeter P column. 2. Calculating perimeter of a square . The perimeter of a rectangle is the sum of all the sides of the rectangle is calculated using Perimeter=2*(Length+sqrt((Diagonal)^2-(Length)^2)).To calculate Perimeter of a rectangle when diagonal and length are given, you need Length (l) and Diagonal (d).With our tool, you need to enter the respective value for Length and Diagonal and hit the calculate button.