3D Shapes: Surface Area and Volume
A deeper guide to volume and surface-area formulas for cones, cylinders, and spheres, with emphasis on choosing the right quantity and understanding what the dimensions mean physically.
Enter the relevant measurements to calculate cylinder surface area in one consistent unit system.
Inputs
The strongest pages in the library pair the live calculator with a topic guide and, where it helps, a printable reference you can reuse offline.
Use this page when you need a fast cylinder surface area result from standard geometric measurements.
Enter dimensions in the same unit unless the page says otherwise. The result reflects the stated formula and the measurements you provide.
Use the Cone Surface Area Calculator to calculate cone surface area from the measurements you enter, with clear formulas and consistent units.
Use the Cone Volume Calculator to calculate cone volume from the measurements you enter, with clear formulas and consistent units.
Use the Cylinder Volume Calculator to calculate cylinder volume from the measurements you enter, with clear formulas and consistent units.
Use the Sphere Surface Area Calculator to calculate sphere surface area from the measurements you enter, with clear formulas and consistent units.