Home › Engineering Toolkit › Sphere
⚪ Sphere
Volume and surface area of a sphere or spherical tank.
The Mixadù Sphere is a free online calculator that volume and surface area of a sphere or spherical tank. It runs entirely in your browser — no sign-up, no uploads, and your inputs never leave your device. Supported units include FT, IN, M, CM, MM.
- Instant results as you type
- Free — no login or sign-up
- Private: runs entirely in your browser
- Part of the 91-tool Engineering Toolkit
Frequently asked questions
Is the Sphere free?
Yes. The Sphere is completely free, with no login or sign-up.
Are my inputs uploaded anywhere?
No. The Sphere runs entirely in your browser; your inputs never leave your device.
Which units does the Sphere support?
It supports FT, IN, M, CM, MM.
Does the Sphere work on mobile?
Yes. It is fully responsive and works on phones and tablets.