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Density Calculator
Enter mass and volume — density updates instantly.
Formula
ρ = m / V (1 g/cm³ = 1000 kg/m³)
Reference Densities
| Material | kg/m³ |
|---|---|
| Water (4 °C) | 1000 |
| Aluminum | 2700 |
| Steel | 7850 |
| Lead | 11340 |
| Wood (pine) | 500 |
FAQ
How do I test if something floats?
Compare its density with the liquid: below 1000 kg/m³ floats on water, above sinks. Salt water (~1025) raises the threshold.
Why is density temperature-dependent?
Most materials expand when heated, so the same mass occupies more volume and density drops — water is the famous exception below 4 °C.