Area Calculator

What Is Area?

Area is the measure of the two-dimensional space enclosed within a shape's boundaries, typically expressed in square units such as square meters (m2), square feet (ft2), or square centimeters (cm2). Calculating area is one of the most fundamental operations in geometry and is used daily in fields ranging from architecture to agriculture. Different shapes require different formulas, but the concept remains the same — quantifying how much surface a shape covers.

How to Use

Select a shape from the dropdown menu and enter the required dimensions. The area is calculated instantly as you type. You can switch between shapes at any time without losing your entered values.

Formulas

Rectangle: width x height. Circle: pi x r^2. Triangle: (base x height) / 2. Trapezoid: ((a + b) / 2) x height. Ellipse: pi x a x b.

Common Use Cases

• Real estate — calculate floor area, lot size, or room dimensions
• Gardening and landscaping — determine soil, mulch, or sod coverage needed
• Construction — estimate material quantities for flooring, painting, or tiling
• Education — practice geometry problems and verify homework solutions
• DIY projects — plan fabric cuts, wallpaper coverage, or shelf dimensions

Tips

Always use consistent units for all dimensions — mixing centimeters and meters will produce incorrect results. For irregular shapes, try breaking them into simpler shapes (rectangles, triangles) and adding the areas together. When measuring real-world objects, take multiple measurements and use the average for greater accuracy. Remember that 1 square meter equals 10,000 square centimeters.

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