Rectangle Calculator
Calculate the area, perimeter, and diagonal of a rectangle given its length and width. Shows formulas used for each calculation.
How to Use Rectangle Calculator
The Rectangle Calculator computes the area, perimeter, and diagonal of any rectangle given its length and width. Area is calculated as length × width, perimeter as 2 × (length + width), and diagonal using the Pythagorean theorem √(length² + width²). Enter any positive values for length and width and get instant results with the formulas displayed. Useful for students studying geometry, architects planning spaces, builders calculating material needs, and anyone working with rectangular dimensions. All calculations are performed with high precision.
Step-by-Step Instructions
- Enter the length of the rectangle
- Enter the width of the rectangle
- Click Calculate to see area, perimeter, and diagonal
- View the formulas and copy results
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