Area Calculator

This free Area Calculator helps you quickly find the area of common 2D shapes. Whether you are solving a geometry problem, planning a room layout, or estimating material for a DIY project, this tool gives you an instant and accurate result.

Simply select a shape, enter its dimensions, and click Calculate Area. The calculator shows the result in square units along with the formula used so you can verify the answer yourself.

Shapes Supported

• Circle — A = π × r²
• Rectangle — A = length × width
• Square — A = side²
• Triangle — A = ½ × base × height
• Trapezoid — A = ½ × (a + b) × h
• Parallelogram — A = base × height
• Ellipse — A = π × a × b

How to Use the Area Calculator

1. Select the shape you want to measure.
2. Enter the required dimensions (radius, length, base, height, etc.).
3. Click Calculate Area.
4. Read the result in square units along with the formula.

Who Is This Tool For?

• Students learning geometry and mathematics.
• Teachers preparing examples and worksheets.
• Engineers and architects estimating areas.
• DIY enthusiasts planning home and garden projects.