Hole Volume Calculator

Calculate the material volume and surface area of a hollow cylinder.

Last updated: June 2026 | By Patchworkr Team

Hollow Cylinder Inputs

Outer Radius

Inner Radius

Height

Outer radius is required.

Volume uses π(R^2 - r^2)h. Surface area here includes both circular rings and the inner and outer curved surfaces.

Live Results

Enter valid dimensions to see results.

Formulas

Material volume: V = π(R^2 - r^2)h

Outer curved area: A = 2πRh

Inner curved area: A = 2πrh

Total surface area: outer curved + inner curved + two rings

Example: R = 5, r = 3, h = 10

Volume: π(25 - 9)10 = 160π ≈ 502.65482458

Surface area components: outer curved area = 100π, inner curved area = 60π, two rings = 64π.

Total surface area: 224π ≈ 703.71675418

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