What is the Sphere Volume Calculator?
Calculate the volume and surface area of a sphere.
Enter radius and the Sphere Volume Calculator returns volume and surface area. Results update as you type, and nothing you enter leaves your device.
How it is calculated
Volume = 4⁄3 πr³
Surface area = 4πr²
How to use it
- Enter radius.
- Read volume in the results panel. It updates as you type.
- Change any value to compare scenarios, or use Share to send the result as a link.
Worked example
Common questions
What formula does the Sphere Volume Calculator use?
It uses: Volume = 4⁄3 πr³; Surface area = 4πr².
What do I need to use the Sphere Volume Calculator?
You need radius. Sensible starting values are filled in so you can see how it works straight away.
Is the Sphere Volume Calculator free, and is my data stored?
It is free with no sign-up. The calculation runs in your browser, so the values you enter are not sent to or stored on our server.