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Density relates how much mass is packed into a given volume, and is one of the most fundamental properties in physics and chemistry.
This calculator finds whichever value you leave blank — density, mass, or volume — from the other two.
How it works
Enter any two of mass (kg), volume (m³), and density (kg/m³), leaving the third blank. The calculator applies the density formula \(\rho = m/V\) to solve for the missing value, and also converts the density to g/cm³.
- Enter mass (kg) — leave blank to solve for this.
- Enter volume (m³) — leave blank to solve for this.
- Enter density (kg/m³) — leave blank to solve for this.
- Click Calculate to see your results.
Examples
10 kg in 0.01 m³
10 kg of a substance occupying 0.01 m³ has a density of 1000 kg/m³, which is exactly the density of water (1 g/cm³).
Who should use it
- Identifying an unknown material by comparing its calculated density to known reference values.
- Checking physics or chemistry coursework involving mass, volume, and density.
Industry applications
- Physics and chemistry education
- Materials science and quality control
Advantages
- Solves for any of the three density quantities from the other two.
- Automatically shows the more intuitive g/cm³ equivalent.
Limitations
- Doesn't account for temperature or pressure effects on density (relevant mainly for gases).
Common mistakes to avoid
- Leaving more than one field blank — the calculator needs exactly two known values to solve for the third.
- Mixing units — this calculator expects kilograms and cubic meters, not grams or liters.
Best practices
- Convert your measurements to kilograms and cubic meters before entering them, for a directly usable SI result.
Tips
- A density close to 1 g/cm³ (1000 kg/m³) suggests the substance is close to the density of water — useful as a quick sanity check.