MATH CALCULATOR
Perimeter of Rectangle Calculator
Calculate the perimeter of a rectangle easily with our online calculator.
What is the Perimeter of Rectangle Calculator & How does it work?
The perimeter of a rectangle is the total distance around its four sides. It is calculated by adding together the lengths of all four sides. For a rectangle, opposite sides are equal in length.
If we denote the length of the rectangle as L and the width as W, the formula for the perimeter (P) is:
This formula accounts for the fact that there are two lengths and two widths in a rectangle.
If we denote the length of the rectangle as L and the width as W, the formula for the perimeter (P) is:
P = 2(L + W)
L = Length, W = Width
This formula accounts for the fact that there are two lengths and two widths in a rectangle.
Parameters
Perimeter—
Frequently Asked Questions
How do I calculate the perimeter of a rectangle?
To find the perimeter, add together the lengths of all four sides. Since opposite sides are equal, you can use the formula P = 2(L + W), where L is the length and W is the width.
What is the formula for the perimeter of a rectangle?
The formula for the perimeter of a rectangle is P = 2(L + W), where L represents the length and W represents the width.
Can I use this calculator to find the perimeter if I only know the area?
No, you cannot directly calculate the perimeter from the area alone. You need both the length and width of the rectangle.
Is there a difference between perimeter and area in a rectangle?
Yes, the perimeter is the total distance around the rectangle, calculated as P = 2(L + W). The area, on the other hand, is the space inside the rectangle, calculated as A = L x W.
How do I find the length and width if I know the perimeter?
If you know the perimeter, you can rearrange the formula P = 2(L + W) to solve for either L or W. You'll need one more piece of information (either L or W) to get a specific answer.
Can this calculator handle decimal numbers?
Yes, you can input decimal numbers for the length and width, and the calculator will provide an accurate perimeter calculation.
What units should I use when calculating the perimeter of a rectangle?
Use consistent units for both length and width (e.g., all in meters or all in inches) to ensure accurate perimeter calculations.
Results are for informational purposes only and do not constitute professional advice.