Density Calculator
Find the density of a material from its mass and volume.
Your numbers
Your results
Density (kg/m³)
Density (kg/m³)
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Density (g/cm³)
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Density (lb/ft³)
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Specific gravity (water = 1)
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Density Calculator by TheCalcTools
How the Density Calculator works
Enter the mass in kilograms and the volume in litres.
Density is mass divided by volume.
Specific gravity compares the density with water at about 1 g/cm³.
The formula
ρ = m ÷ V1 L = 0.001 m³
Worked example
Using the default values shown in the calculator:
| Mass (kg) | 7.85 |
|---|---|
| Volume (litres) | 1 |
- Density = 7.85 kg ÷ 0.001 m³ = 7,850 kg/m³.
- In g/cm³ that is 7.85, a specific gravity of 7.85.
Result:
| Density (kg/m³) | 7,850.0 |
|---|---|
| Density (g/cm³) | 7.850 |
| Density (lb/ft³) | 490.06 |
| Specific gravity (water = 1) | 7.850 |
Frequently asked questions
Why does ice float?
Ice has a density of about 917 kg/m³, below liquid water at 1,000, so it floats with about 8% above the surface.
What is the density of steel?
About 7,850 kg/m³, which is the default example.
Sources and further reading
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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.