UniToolHub

Area Calculator

Calculate area of various geometric shapes.

FormulaA = π × r²
Result Area—
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About Area Calculator

Calculate the area of various shapes: circle, rectangle, triangle, trapezoid, parallelogram, ellipse, and more. Supports multiple units.

How to Use

  1. 1

    Select shape

    Choose the geometric shape.

  2. 2

    Enter dimensions

    Input the required measurements.

  3. 3

    View result

    See the calculated area in your chosen unit.

Examples

Circle area
Input: Circle, r=5
Output: 78.54 sq units
Rectangle area
Input: Rectangle, 10×5
Output: 50 sq units

Frequently Asked Questions

What shapes are supported?
Circle, rectangle, square, triangle, trapezoid, parallelogram, rhombus, and ellipse.
What units are available?
Square meters, square feet, square inches, square centimeters, square kilometers, square miles, acres, and hectares.
How is the area of a circle calculated?
Area = π × r², where r is the radius of the circle.