About this tool
Density is mass per unit volume — a fundamental property of materials.
Formula
ρ = m / V
Worked example
500 g in 250 cm³ → ρ = 2.0 g/cm³ (close to dense rock).
Notes
Common densities: water 1.0 g/cm³ at 4 °C, ice 0.917, ethanol 0.789, aluminum 2.7, iron 7.87, gold 19.32.