Area Calculator | Free Online Geometry Tool

Geometry Area Tool

Select a shape to calculate its area.

Area Result:

0.00

Select a shape and enter dimensions.

How to Use

  1. Select a Shape: Click on the Rectangle, Triangle, or Circle button to choose the geometric shape you want to analyze.
  2. Enter Dimensions: Input the required positive numerical values (Length/Width, Base/Height, or Radius) into the fields.
  3. Calculate: Click the large blue “Calculate Area” button to see the result displayed below.
  4. Reset: Use the “Reset” button to clear all inputs and the result display quickly.