Calculate circle properties
Our Circle Calculator computes all properties of a circle given any one measurement. Enter radius, diameter, circumference, or area, and the calculator instantly determines all other properties using π (pi). Perfect for geometry homework, construction planning, engineering, or any application involving circular shapes. The tool shows formulas used and provides step-by-step calculations for educational purposes.
All circle properties from one measurement
Radius, diameter, area, circumference
Shows calculation formulas
High precision using π
Visual circle diagram
Step-by-step solutions
Educational mode
Enter any one circle measurement (radius, diameter, area, or circumference). The calculator automatically computes and displays all other properties with formulas and explanations.
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