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Density
Density is a core engineering term. Definition, usage notes, and a practical example.
Definition
Density is mass per unit volume.
Why it matters
It affects weight, inertia, buoyancy, and logistics cost.
How it is used
In a design check, first define the relevant load, dimension, material, or flow condition. Then interpret this term by its role in the formula and compare it with limits.
Density = Mass / Volume
Example
For the same volume, a steel part can be about three times heavier than aluminum.
Related calculators and resources
Formulas
Density = Mass / Volume