Radius Calculator

The Radius Calculator is a versatile tool that determines the radius of a circle when you know any other circle property. Choose your calculation method from the three available modes: diameter, circumference, or area. Enter the known value with your preferred units, and the calculator will instantly compute the radius along with all other related circle properties including diameter, circumference, and area for complete reference.

Understanding radius calculations is essential in geometry, engineering, architecture, and many practical applications such as designing circular objects, calculating material requirements, determining pipe sizes, or planning circular gardens. The radius is fundamental to all circle calculations and serves as the basis for computing area, circumference, and other geometric properties. This calculator is perfect for students, engineers, architects, and anyone working with circular measurements and designs.