Math
Annulus area
Find the area of a circular ring by subtracting the inner disk from the outer disk, and add both circumferences for its total boundary.
Calculators / Math / Hollow cylinder volume
Hollow cylinder volume calculator
Subtract the empty inner cylinder from the outer cylinder to find material volume, and subtract the radii to find wall thickness.
On this page
Material volume452.39units³
Wall thickness2units
Calculator controls
How to calculate
Subtract the empty inner cylinder from the outer cylinder to find material volume, and subtract the radii to find wall thickness.
Material volume = pi*(R^2-r^2)*h units³; Wall thickness = R-r units
Worked example
Outer radius: 4; Inner radius: 2; Perpendicular height: 12.
Material volume: 452.39 units³; Wall thickness: 2 units.
Assumptions and limits
Subtract the empty inner cylinder from the outer cylinder to find material volume, and subtract the radii to find wall thickness. Use the same length unit throughout. Angles marked degrees use degrees. Results describe ideal geometric shapes.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Subtract the empty inner cylinder from the outer cylinder to find material volume, and subtract the radii to find wall thickness.
When this tool is useful
Material volume = pi*(R^2-r^2)*h units³; Wall thickness = R-r units
Understanding your inputs
| Input | What to enter |
|---|---|
| Outer radius | Enter a number of at least 1e-12 and no more than 1000000000000. |
| Inner radius | Enter a number of at least 0 and no more than 1000000000000. |
| Perpendicular height | Enter a number of at least 1e-12 and no more than 1000000000000. |
Frequently asked questions
What assumptions does this calculation use?
Subtract the empty inner cylinder from the outer cylinder to find material volume, and subtract the radii to find wall thickness. Use the same length unit throughout. Angles marked degrees use degrees. Results describe ideal geometric shapes.
How is the result calculated?
Material volume = pi*(R^2-r^2)*h units³; Wall thickness = R-r units