Sphere Calculator
Calculate volume, surface area, diameter, and circumference of a sphere from its radius. Shows formulas and step-by-step calculations.
How to Use Sphere Calculator
The Sphere Calculator computes all key measurements of a sphere from its radius. Enter the radius and instantly get the volume (4/3 × π × r³), surface area (4 × π × r²), diameter (2r), and circumference (2πr). The tool displays the formulas with your values substituted so you can follow the calculation step by step. Useful for geometry homework, 3D modeling, engineering calculations, physics problems, and any application where you need sphere measurements. Supports decimal values for precise calculations. All math runs in your browser with no data sent to any server.
Step-by-Step Instructions
- Enter the radius of the sphere
- Click Calculate to compute all properties
- View volume, surface area, diameter, and circumference
- See the step-by-step formula breakdown and copy results
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