Perimeter Calculator
Calculate perimeter, area, and diagonal of rectangles and squares
Rectangle/Square Calculator
Enter equal values for length and width to calculate a square
About Perimeter Calculation
The perimeter is the total distance around the edges of a shape. For rectangles and squares, it's calculated by adding all side lengths. This calculator also provides area, diagonal length, and aspect ratio information.
•Formulas
Rectangle Perimeter:P = 2(l + w)
Rectangle Area:A = l × w
Diagonal:d = √(l² + w²)
•Features
- –Calculate perimeter and area
- –Compute diagonal length
- –Determine if shape is a square
- –Calculate aspect ratio
- –High precision calculations
•How to Use
- 1.Enter the length of your rectangle/square
- 2.Enter the width (same as length for squares)
- 3.Click "Calculate" to see comprehensive results
- 4.View perimeter, area, diagonal, and additional information