Quickly calculate the perimeter of a rectangle by entering its length and width. Choose your preferred unit from the dropdown menu.

Rectangle Perimeter Calculator

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Result

Perimeter:

Calculation Steps:

What is Rectangle Perimeter?

The perimeter of a rectangle is the total distance around its boundary. In simpler terms, if you were to walk along all the sides of a rectangle, the total distance you would cover is its perimeter.

A rectangle has two pairs of equal sides: length (l) and width (w). The formula to calculate the perimeter (P) of a rectangle is given by:

$$P = 2 \times (l + w)$$

This formula means you add the length and width of the rectangle, and then multiply the sum by 2 to get the perimeter.

Example:

Let's say you have a rectangle with a length of 5 cm and a width of 3 cm. To find the perimeter:

So, the perimeter of the rectangle is 16 cm.

Uses of Perimeter Calculation: