Area of Rectangle Calculator

Calculate the area and perimeter of a rectangle by entering its length and width. This free online calculator provides instant results for your geometry calculations.

How to Use the Rectangle Calculator

Follow these simple steps to calculate the area and perimeter of a rectangle:

1. Enter the length of your rectangle in the first input field
2. Enter the width of your rectangle in the second input field
3. Click the "Calculate" button to get instant results
4. View both the area and perimeter displayed below

Rectangle Formulas

This calculator uses the following standard mathematical formulas:

• Area: Length × Width
• Perimeter: 2 × (Length + Width)

About Rectangles

A rectangle is a four-sided polygon (quadrilateral) with four right angles. Opposite sides of a rectangle are equal in length and parallel to each other. The area represents the total surface space inside the rectangle, while the perimeter is the total distance around all four sides.

Common Applications

Rectangle calculations are useful in many real-world scenarios:

• Measuring rooms and flooring for home improvement projects
• Calculating land area for property and real estate
• Determining material requirements for construction
• Planning gardens and landscaping layouts
• Solving geometry homework and math problems