How do you calculate hollow cylinder volume?

Subtract the inner cylinder area from the outer cylinder area, then multiply by height or length.

Is pipe volume the same as wall material volume?

Not always. Pipe capacity is the inner void volume, while material volume is the wall volume.

Can I enter diameters instead of radii?

Yes. Choose the diameter mode and the calculator converts outer and inner diameters to radii.

Hollow Cylinder Volume Calculator

Calculate hollow cylinder or pipe wall volume, inner void volume, outer solid-cylinder volume, wall thickness, and surface areas from inner and outer radii or diameters.

Known values

Unit

Inner radius (cm)

Outer radius (cm)

Height or length (cm)

Choose how the pipe or tube is measured: radii, diameters, or inner radius plus wall thickness. Keep all linear dimensions in the same unit.

The main result is wall material volume. Inner void capacity and the outer solid-cylinder volume are shown separately.

Pipe wall volume from inner and outer radius

English searchers often mean pipe or tube material volume, not just the capacity inside the pipe. This calculator separates wall material volume, inner void volume, and the outer solid-cylinder volume.

V = π h (R^{2} - r^{2})

R is outer radius, r is inner radius, and h is height or length.

t = R - r

t is wall thickness.

Measurement modes

Known values	Use case
Inner and outer radii	Direct geometry measurements.
Outer and inner diameters	Pipe specifications or caliper measurements.
Inner radius and wall thickness	Tube wall material calculations.

Use the inner void volume for capacity. Use wall material volume for material, weight, or displacement estimates.

Frequently Asked Questions

Sources and References

Calculations are based on the listed reference sources. Links open in a new tab.

Updated: June 2, 2026

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