Sphere Volume Calculator
Enter the radius of your sphere — get volume, surface area, diameter and circumference together.
Enter values — the result will show here live.
How to use
- Enter the radius (if you know the diameter, half of it is the radius).
- Volume and surface area will appear in the result.
Note: Formulas: Volume = (4/3) pi r³, Surface area = 4 pi r². The result will use the same unit as your radius.