Geometry
Rectangle Perimeter
Perimeter of a rectangle.
Formula
Formula
P = 2(l + w)
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| l | length | real number (ℝ) | — | input |
| w | width | real number (ℝ) | — | input |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenlength l = 8, width w = 3
Result22
Example 2
Givenlength l = 5, width w = 5
Result20