Density of a Cylinder Calculator

Written by Great Medico

Updated September 25, 2026 •2 min read

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Density and buoyancy problems usually become simple once mass and volume are defined consistently. Density of a Cylinder Calculator focuses on cylinder density, with unit-aware relationships that make it easier to spot a misplaced volume or mass conversion.

What this calculator does

The Density of a Cylinder Calculator centers on cylinder density using the fields that are actually present here: Weight/mass (m), Volume (V), Density (ρ), Show height and radius?, Height. Rather than treating every box as an independent input, use the equation below to identify the driving quantities and read the remaining fields as derived or supporting values when appropriate.

How to use it

When dimension mode is on, enter mass, height, and radius; the page forms cylinder volume automatically. Turn dimension mode off when you want to supply volume directly.

How the calculation works

When height and radius are shown, the page builds cylinder volume from V = πr²h, then uses ρ = m/V. If you work directly with volume instead, the same density relation applies without the geometry step.

Example

For m = 1 kg, r = 0.10 m, and h = 1.0 m, the cylinder volume is π(0.10)²(1) ≈ 0.03142 m³. Density is therefore about 31.83 kg/m³.

How to interpret the result

For Density of a Cylinder Calculator, read cylinder density in the context of the equation above. Interpret the result only after confirming that mass, volume, and density refer to the same physical sample and unit basis. A result that changes inversely with volume at fixed mass—or directly with mass at fixed volume—is behaving as the density relation predicts.

Limitations and notes

The geometry assumes a right circular cylinder and uses the entered radius, not diameter. Hollow walls, bores, end caps, tapered shapes, or internal voids change the material volume. If “Show height and radius?” is enabled, those dimensions can replace a separately entered volume, so check which path you intend before interpreting the density.