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Home/Engineering Reference Tools/Circle Properties

Free Circle Properties

Calculate the Area and Circumference of a circle given its Radius. Fundamental geometry tool for machining, design, and spatial analysis.

Configuration

Radius

How to Use

Enter the Radius of the circle.
The tool provides both Area and Circumference.

Common Use Cases

Geometry

Frequently Asked Questions

What is Pi (π)?

Pi is the ratio of a circle's circumference to its diameter, approximately 3.14159.

How do I find Radius from Diameter?

Simply divide the diameter by 2.

Pro Tip

A = πr²

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Free Circle Properties - Online Tools | ConfigGen