Geometry
Sphere Volume Calculator
Turn a single radius into spherical volume and surface area within a polished layout.
spherevolumesurface area
Sphere Volume & Surface
One radius delivers volume and total surface values side-by-side.
Volume
904.78 (unit³)
Surface area
452.39 (unit²)
Sphere formulas
Volume = 4/3 πr³ Surface area = 4πr²
r is radius using any consistent unit. Volume returns cubic units while surface uses squared units.
How to use
- Enter the sphere radius.
- Optionally adjust decimal precision for engineering or academic work.
- Read volume and surface area in the matching output block.
Example
Input: Radius = 6 cm
Output: Volume ≈ 904.78 cm³, Surface ≈ 452.39 cm²
FAQ & notes
Why is radius the only input?
The sphere’s symmetry means volume and area both come directly from radius, so no additional measures are required.
Can I enter diameter instead?
Yes—divide the diameter by two to get radius first, then enter that value for precise results.