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Mass & density calculator
Volume is only half the story — add a material density to estimate the weight of a solid or filled cylinder in kg and pounds.
You cannot get weight from size alone, and this mass & density calculator is honest about that: pick a material or type in its density, and the tool combines it with the cylinder's volume to estimate the mass.
How to work it out
- Measure across the circular end — the diameter or radius.
- If you measured the diameter, halve it to get the radius r.
- Square the radius and multiply by π to get the base area.
- Multiply the base area by the height h: V = π r² h.
- Convert the result into your preferred unit above.
Worked example. Take a cylinder with a diameter of 10 cm (so a radius of 5 cm) and a height of 25 cm. The base area is π × 5² = 78.54 cm², and multiplying by the height gives a volume of about 1.96 litres (1,963 cm³ · 0.52 US gallons).
Weight depends entirely on the material's density, which the tool needs as an input. Densities also vary with temperature and grade, so treat the mass as an estimate.
Every mass & density page
Each page below targets a specific question and opens with the calculator ready to go:
Good to know
How do I calculate the mass of a cylinder?
mass = ρ × V. Water is about 997 kg/m³; steel is about 7850 kg/m³. Pick a material or enter a custom density above.