Rectangle Area Calculator - Find Length × Breadth Instantly
Calculate the area of a rectangle from its length and breadth. Get instant results in square meters, square feet, and square yards, free online.
How to Use the Rectangle Area Calculator
- Enter the length and select its unit.
- Enter the breadth and select its unit.
- View the area instantly in square meters, square feet, and square yards.
Features of the Rectangle Area Calculator
- Instantly calculates the area of a rectangle from its length and breadth.
- Length and breadth can be entered in different units, and the calculator handles the conversion automatically.
- Shows results simultaneously in square meters, square feet, and square yards.
- Free to use with no sign-up required.
Rectangle Area Formula
The area of a rectangle is found by multiplying its length by its breadth.
Rectangle Area = L × B
Where L is the length and B is the breadth (also called the width), measured along the two adjacent sides.
Rectangle Area Reference Table
| Length | Breadth | Area (L × B) |
|---|---|---|
| 5 | 3 | 15 |
| 10 | 4 | 40 |
| 2.5 | 2.5 | 6.25 |
How to Calculate the Area of a Rectangle
To find the area of a rectangle, multiply its length by its breadth.
Suppose you have a rectangle with a length of 10 and a breadth of 4. Area = 10 × 4 = 40.
Thus, the area of the rectangle is 40 square units.
Solved Examples on Rectangle Area
1. Area From Whole-Number Dimensions
Example: Find the area of a rectangle with length 5 meters and breadth 3 meters.
Area = 5 × 3 = 15 m².
2. Area of a Square-Shaped Rectangle
Example: Find the area of a rectangle with length 2.5 meters and breadth 2.5 meters.
Area = 2.5 × 2.5 = 6.25 m². When length and breadth are equal, the rectangle is a square.
3. Mixed Units: Length and Breadth
Example: Find the area of a rectangle with length 12 feet and breadth 10 feet.
Since both are already in feet, Area = 12 × 10 = 120 ft², which converts to approximately 11.1484 m².
4. Area From Decimal Dimensions
Example: Find the area of a rectangle with length 10 meters and breadth 4 meters.
Area = 10 × 4 = 40 m².
1. What is the formula for the area of a rectangle?
The area of a rectangle is found by multiplying its length by its breadth: Area = L × B.
2. What’s the difference between a rectangle and a square?
A square is a special type of rectangle where the length and breadth are equal. All squares are rectangles, but not all rectangles are squares.
3. Can length and breadth be entered in different units?
Yes. The calculator converts each measurement to a common base unit before multiplying, so you can enter length in feet and breadth in meters, for example, and still get an accurate area.
4. How is rectangle area different from perimeter?
Area measures the space enclosed within the rectangle (L × B), expressed in square units, while perimeter measures the total distance around its edges (2 × (L + B)), expressed in linear units.
5. Can length or breadth be negative or zero?
No. Both length and breadth must be positive numbers, since a rectangle with a zero or negative side doesn’t correspond to a real shape with any enclosed area.
6. Where is rectangle area used in practice?
Rectangle area calculations are used in flooring and carpet estimates, room and wall measurements in construction, and sizing rectangular plots of land or garden beds.