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Density Calculator (ρ = m / V)

Find density from mass and volume.

Last updated: 25 Aug 2026

Quick answer

Density is mass divided by volume: ρ = m ÷ V. For example, 300 g in 100 cm³ is 3 g/cm³. Enter the mass and volume above (use consistent units).

Find density as mass ÷ volume (ρ = m / V). Use consistent units, e.g. grams and cm³ for g/cm³.

How to calculate density

  1. 1 Enter the mass.
  2. 2 Enter the volume.
  3. 3 We compute density = mass ÷ volume.

Frequently asked questions

What is the density formula?
Density = mass ÷ volume (ρ = m / V).
What units result?
Whatever you enter — grams and cm³ give g/cm³; kg and m³ give kg/m³.
How do I find mass or volume?
Rearrange: mass = density × volume; volume = mass ÷ density.

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