Area Calculator (Geometry) - Free Online Tool
Quickly calculate the area of common geometric shapes using simple formulas.
Area
78,54 u²
Results in square units. Cylinder uses total surface area.
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Frequently asked questions
How do I calculate the area of a circle?
To calculate the area of a circle, multiply pi (approximately 3.14159) by the radius squared. The formula is A = πr², where r is the distance from the center to the edge of the circle.
How do I find the area of a triangle?
The area of a triangle is calculated by multiplying the base by the height and then dividing the result by 2. The formula is A = (base × height) / 2. This works for all triangles.
What is the difference between area and perimeter?
Area measures the total surface inside a two-dimensional shape, expressed in square units. Perimeter measures the total distance around the shape's boundary, expressed in linear units. They are different geometric concepts.
What Is Area?
Area is a measure of the amount of space inside a two-dimensional shape. It is expressed in square units, such as square meters, square feet, or square centimeters. In everyday life, area is used to determine the size of floors, walls, land, and other surfaces. Knowing how to calculate area helps in construction, interior design, landscaping, and many other fields. Our calculator simplifies these calculations by using standard geometry formulas.
How to Use the Area Calculator
Enter the required measurements for your shape, such as radius, base, height, side length, or width. The calculator will automatically apply the correct formula and return the area in your chosen unit. It supports common shapes including squares, rectangles, triangles, circles, parallelograms, and trapezoids. This tool is ideal for students, builders, designers, and anyone who needs fast and accurate area results without manual calculations.