Area Calculator
Calculate the area of rectangles, triangles, circles, trapezoids, and ellipses instantly. Free online area calculator with formulas.
Embed this toolArea
50
Formula: A = 10 × 5
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What Is Area?
Area is the measure of the space inside a two-dimensional shape. It is expressed in square units (such as square meters, square feet, or square inches). Understanding how to calculate area is essential in fields like construction, landscaping, engineering, and everyday tasks like painting a room or laying flooring.
When to Use Each Formula
- Rectangle: Use for rooms, fields, and any four-sided shape with right angles.
- Triangle: Use for roof pitches, sail designs, and triangular plots of land.
- Circle: Use for round tables, pools, wheels, and circular gardens.
- Trapezoid: Use for irregular four-sided shapes with one pair of parallel sides.
- Ellipse: Use for oval tracks, planetary orbits, and elliptical mirrors.
Frequently Asked Questions
The area of a rectangle is calculated by multiplying its width by its height: Area = width × height. For example, a rectangle with a width of 10 and a height of 5 has an area of 50 square units.