Density, Mass & Volume
Solve density, mass, or volume using ρ = m ÷ V.
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How density, mass, and volume are calculated
This calculator solves density, mass, or volume when the other two are known. It is useful for physics, chemistry, materials, liquids, packaging, metals, wood, and everyday object estimates. Density helps compare how heavy materials are for the same volume.
Check units carefully, such as g/cm³, kg/m³, and g/mL. Density can also change with temperature, pressure, and material purity.
Formula or logic
- Density ρ = Mass m ÷ Volume V
- Mass m = Density ρ × Volume V
- Volume V = Mass m ÷ Density ρ
Example
If an object has a mass of 200 g and a volume of 100 cm³, its density is 2 g/cm³. For the same volume, a denser material is usually heavier.
Common questions
Is density the same as weight?
No. Density is mass per unit volume, while weight depends on gravity.
Are g/mL and g/cm³ the same?
For common metric volume, 1 mL equals 1 cm³, so the numeric values match.
Can density change?
Yes. Temperature, pressure, composition, and material state can affect density.