Sphere Calculator
Volume and surface area of a sphere
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
Volume—
Surface area—
Diameter—
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- Radius 5 → Volume ≈ 523.60; surface area ≈ 314.16; diameter 10
- Radius 6 → Volume ≈ 904.78, surface area ≈ 452.39, diameter 12
Formula
Volume = (4/3)πr³. Surface area = 4πr². Sphere has the smallest surface area for a given volume of any shape.
About Sphere Calculator
Volume and surface area of a sphere. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
Is this tool free to use? +
Yes, it is completely free with no registration or download required.
Is my data private? +
Yes. Everything is processed locally in your browser. Nothing is uploaded or stored on our servers.
Does it work on mobile? +
Yes, it works on any device — phone, tablet, or desktop.