Rectangle Perimeter: 20 × 10
A rectangle with width 20 and height 10 has a perimeter of 60 units.
How to use this tool
- Enter width and height in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your perimeter and the full breakdown beneath it.
A 20 by 10 rectangle has a perimeter of 60 units, double a 10×5 rectangle's perimeter.
Frequently asked questions
- How do you find the perimeter of a rectangle?
- Perimeter = 2 × (width + height). Area = width × height.