Area of a Rectangle Calculator

Need a rectangle's area? Our calculator does the math for you! Just input the length and width, and instantly get results using A = l × w. Ideal for schoolwork, room layouts, or gardening projects. No manual calculations—get accurate answers in seconds!

Area of a Rectangle Calculator

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Area:
Perimeter (P):
Diagonal (d):
Calculation Formula:
Calculation Steps:
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About the Area of a Rectangle

Here we will study the area of a rectangle. Some properties of a rectangle include: what does a rectangle look like, what are the properties of a rectangle, and how can we find the area of a rectangle? We have given the shape of a rectangle in the picture below. A rectangle looks something like this. A rectangle has some properties, like having four sides and four corners. Its necessary property is that the length of its two sides is equal.
For example, in this rectangle, side A is 6 cm, so its opposite side B will be 6 cm. Similarly, side C is 4 cm, so its opposite side D will be 4 cm.

Area of a Rectangle Calculator

How can we find the area of a rectangle? The formula for the area of a rectangle is length multiplied by width. When we multiply the length by the width, we will get the area of the rectangle. Let us find the area of this rectangle using this figure. The formula for area is A = length multiplied by width. So here, the length is 6 cm, and the width is 4 cm. When we multiply them, it will come to 24 cm square. Remember that it is necessary to put a square in the area. If you write 24 cm by mistake, then your answer will be considered wrong.

Area of a Rectangle Calculation Formula

We have given a formula below, which makes it very easy to calculate the area of a rectangle. It's simple. The formula for finding the area (A) of a rectangle is given by:
A = length × width

Area of a Rectangle Calculator

Area of a Rectangle Calculation Example

Let's calculate the area of a square room floor with a width of 16 feet and a height of 8 feet, and then determine how many 1 ft × 1 ft floor tiles are needed to cover it. To understand the example, see the image given below.
We are calculating the Area of the room floor:
The area A of a square is calculated using the formula:
A = width × height
Given: width = 16 ft, height = 8 ft
So, A = 16 ft × 8 ft = 128 ft²
Example 1. Calculate the Number of 1 ft × 1 ft Tiles Needed:
Each tile covers an area of:
1 ft × 1 ft = 1 ft²
To cover the entire room floor:

Number of tiles = 
Total area
Area per tile
128 ft2
1 ft2
 = 128 tiles

Area of the room floor: 128 ft²
Number of 1 ft × 1 ft Tiles Needed: 128 tiles


Example 2. Calculate the Number of 2 ft × 2 ft Tiles Needed:
Each tile covers an area of:
2 ft × 2 ft = 4 ft²
To cover the entire room floor:

Number of tiles = 
Total area
Area per tile
128 ft2
4 ft2
 = 32 tiles

Area of the room floor: 64 ft²
Number of 2 ft × 2 ft Tiles Needed: 32 tiles

Area of a Rectangle Calculator

Now, we will calculate and understand the area of a rectangle based on the formula above. If the length of the rectangle is 200 cm and the width is 100 cm, you can substitute these values into the formula:
A = 200 × 100
Now, calculate the area:
A = 20,000 square cm.
So, the area of a rectangle with dimensions of 200 cm by 100 cm is 20,000 square cm.

FAQ

Q1: Is it possible to use the Area of a Rectangle Calculator for any kind of rectangle?
Yes! This calculator can calculate the area of any given rectangle, regardless of its size, whether it is a book or a piece of land. As long as the unit of length is the same for the two subsequent measurements for breadth, it is perfectly fine.

Q2: What scale units are available with this Area of a Rectangle Calculator?
The calculator normally operates with units including meters, centimeters, inches, and feet. These units can be interchanged according to the necessity for achieving the needed outcomes.

Q3: Is it necessary to know its length, as well as its width?
Well, yes, to be exact, to get the area of a rectangle, one has to type in the full name and also the width. If one of these values is entered, it can't calculate the area of the circle because one of the parameters is missing.

Q4: Can this Area of a Rectangle Calculator accept values that include a decimal value?
Absolutely. To be more precise in the measurements, you get the accuracy of the decimal value that the calculator allows. In other words, it will take into account the length of 5.5 meters and the width of 3.2 meters to produce the area.

Q5: How genuine is the Area of a Rectangle Calculator?
The Area of a Rectangle Calculator also gives good results if only the values entered are correct. It carries out the calculation to the shortest possible instance and is absolutely accurate, as it reduces human factors.