Area Calculator

Area Calculator

Area Calculator

This tool helps you find the area of common geometric shapes.

What is Area?

Area is the quantity that expresses the extent of a two-dimensional surface. It tells you how much space a shape is occupying.

Area is always measured in “square units” (like square meters, square feet). This calculator lets you find the area of different shapes like Triangles, Rectangles, and Circles based on their dimensions (like length, radius).

Select a Shape

Triangle

Calculate area from 3 side lengths.

Rectangle

Calculate area from length and width.

Circle

Calculate area from radius.

Trapezoid

Calculate area from bases and height.

Triangle Area (using 3 Sides)

Rectangle Area

Circle Area

Trapezoid Area

How to Use This Calculator

Using this tool is very easy:

  • 1. Select Shape: First, select your shape from the “Home” tab (like “Triangle”) or click the tabs at the top.
  • 2. Enter Dimensions: Enter the required dimensions for that shape (e.g., length and width for a Rectangle).
  • 3. Calculate: Click the “Calculate” button.
  • 4. View Result: The area will appear in the green box below in “units²”.