Sphere Volume Calculator
Calculate sphere volume from radius using 4πr³/3.
How to use
- Enter radius r.
- Calculate to obtain cubic volume.
Capabilities and scope
A single radius determines the three-dimensional volume of a complete sphere.
How it works
It uses V = 4πr³/3.
Example
Radius 3 gives 36π, about 113.0973.
Useful for
- Estimate the outer volume of a spherical object
- Compare sphere volumes as radius changes
Before you use it
- It assumes a complete sphere and does not account for wall thickness or spherical segments.
Frequently asked questions
What if I know the diameter?
Divide the diameter by two and enter the radius.