Circle Calculator
Calculate all circle properties from any known value. Input radius, diameter, circumference, or area to compute all measurements with visual diagram.
6.2Kuses
7.6/10(421)
How to Use the Circle Calculator
- Select which property you know: radius, diameter, circumference, or area.
- Enter the value in the input field.
- Click Calculate to compute all circle properties.
- View the visual circle diagram with labeled measurements.
Circle Formulas
- Diameter: d = 2r
- Circumference: C = 2 * pi * r
- Area: A = pi * r^2
Features
- Calculate from any known property
- Interactive visual circle diagram
- Copy results to clipboard
- 100% client-side processing
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Disclaimer: This tool is provided as-is for informational and educational purposes only.