Is Surface Area Calculator free to use?

Yes, it is completely free to use. No registration required.

Does it upload my data?

No. It uses pure front-end technology — all processing happens in your browser.

Cube, sphere, cylinder, cone, rectangular prism, and other common 3D shapes.

Yes. It is fully responsive and works on all devices.

No. Just open the webpage in your browser. No downloads needed.

Select a 3D shape type, enter the dimensions, and click calculate.

Supported shapes: cube, sphere, cylinder, cone, rectangular prism, and more.

All calculations happen in your browser — no data is uploaded to any server.