Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Apr 21, 2023

Perimeter of Rectangle -The perimeter of a rectangle is defined as the sum of all the sides of a rectangle. Perimeter of a rectangle = 2 (Length + Width) units.

For example, if the length of the rectangle is 12 cm and the width is 14 cm

Perimeter = 2 (length + width) = 2 (12 + 14) = 52 cm Enter the length

Enter the width

### Formula of Perimeter of a Rectangle

The perimeter of a rectangle is simply the total summation of all the sides of a rectangle. Also, we can say the rectangle perimeter means the total distance covered by the rectangle. As we know in a rectangle, the opposite sides are always the same in size and so, the perimeter of the rectangle is the sum of twice the length with twice width and it is signified by the letter “p�. To understand it more simply let's derive its formula.

Let's consider a rectangle that has a length is l and the width is w.

Now, the perimeter of a rectangle is the total sum of all the sides of it. So,
Rectangle Perimeter (p)= summation of all rectangle's four sides
p = l + w + l +w (Opposite sides of rectangle are similar) P = 2 (l + w)
And it's the formula of the rectangle's perimeter.

Hence,
Perimeter of a Rectangle = 2(Length + Width) Unit

### How to Calculate the Perimeter of a Rectangle?

To calculate the perimeter of a Rectangle, you just have to follow some easy steps like:

Step 1: Once we go through given information and find out the side measures of a rectangle or we can say the length and width of the rectangle. And note the value.

Step 2: Now, the sides of the rectangle are always the same so you two different numbers only from which one is the length and second is the width.

Step 3: Now do the sum of the length and width.

Step 4: Now multiply the result of Step 3 (length + width) with 2.

Step 5: Now the answer is the rectangle's perimeter in the same unit.

### Examples of Finding the Perimeter of a Rectangle

Example 1: Calculate the perimeter of a rectangle with length 11 cm and width are 17 cm

Calculation:

Length = 11 cm and Width = 17 cm

Now the formula of perimeter of a rectangle

p = 2 (length + width)

p = 2 (11 + 17) cm

p = 2 x 28 cm

p = 56 cm

Hence, the perimeter of a rectangle = 56 cm

Example 2: Determine the perimeter of a rectangle whose length and width are 98 feet and 12 feet respectively.

Solution:

Here given data,

Length = 98 feet

Width = 12 feet

Perimeter of Rectangle = 2 ( Length + Width )

p = 2 ( 98 + 12) feet

p = 2 x 110 feet = 220 feet

So, the perimeter of a rectangle is 220 feet.

Sometimes you may be given the perimeter value and size of one side of the rectangle and you have to find another side. It is also very easy. Let's understand it with an example.

Example 3: A rectangular area has 12 cm length and 72 cm perimeter, now find the width of the rectangle.

Solution: As per given data,

Perimeter of the rectangle = 72 cm

Length of the rectangle = 12 cm

Formula of the Perimeter

p = 2 (length + width)

If we enter the value in this formula then

72 = 2 (12+ width)

36 = 12 + width

width = 24

So, the width of the rectangle is 24 cm.

### Frequently Asked Questions (FAQs) on Perimeter of a Rectangle Calculator

Question 1: What is the perimeter of a rectangle?

Answer 1: The perimeter of a rectangle is the total distance of the edge of a rectangle or we can say a rectangle’s perimeter is the total boundary of it.

Question 2: What is the Formula of the perimeter of a rectangle?

Answer 2: Formula of the perimeter of a rectangle:

Perimeter of a Rectangle = 2(Length + Width) Unit

Question 3: What is the difference between the area and perimeter of a rectangle?

Answer 3: The perimeter is the total distance of the outside edges of a rectangle while the area is the area occupied inside the rectangle.

Question 4: To calculate the perimeter using a Perimeter of a Rectangle Calculator, what do we need?

Answer 4: We require only length and width to find out the Perimeter of a Rectangle Calculator within seconds.