About This Free Tool

This Free Online Circle Area Calculator Tool is designed to provide quick and accurate calculations for finding the area of a circle. By simply entering the radius or diameter and selecting your preferred unit, you can get the result instantly.

Whether you’re a student working on a math problem, a professional in engineering, or just need to calculate for a personal project, this tool makes the process effortless. It’s completely free to use and accessible from any device.

Disclaimer: The information provided by this tool is for reference purposes only and should not be considered a substitute for professional calculations.

How to Use the Tool

1. Enter a value: In the first input field, type the length of the radius or the diameter of your circle.
2. Select the input type: Choose “Radius” or “Diameter” from the dropdown menu to specify your input.
3. Choose your unit: Select the unit of measurement (cm, m, in, ft) from the second dropdown.
4. Click ‘Calculate’: Press the button to see the calculated area displayed below.