Common Material Densities
| Material | Density (g/cm³) |
|---|---|
| Water | 1.00 |
| Aluminum | 2.70 |
| Iron | 7.87 |
| Copper | 8.96 |
| Gold | 19.32 |
| Air (sea level) | 0.001225 |
Objects with density less than water (1.0 g/cm³) float; those with greater density sink.
Density Calculator
Calculate density, mass, or volume using the formula D = M/V. Enter any two values to find the third.
📐 How We Calculate — Learn about our calculation methodology, data sources, and quality standards.
Frequently Asked Questions
What is density?
Density is mass per unit volume (D = M/V). It tells you how tightly packed matter is in a given space.
Does temperature affect density?
Yes. Most materials expand when heated, decreasing density. Water is unusual: it is densest at 4 degrees C, which is why ice floats.
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Open →How to Use This Density Calculator
Enter any two of mass, volume, or density to compute the third. Select from common materials or enter custom values.
Formula & How It Works
Density = Mass / Volume. Rearranged: Mass = Density × Volume, Volume = Mass / Density. SI unit: kg/m³. Water = 1000 kg/m³ = 1 g/cm³.
Calculation Example
A gold bar 500g: Volume = 500 / 19,300 = 0.0259 cm³ ≈ 25.9 mL. Very small! Gold density (19,300 kg/m³) is 19.3× water.
Expert Tips
If density > water (1 g/cm³), the object sinks. Materials can be identified by their density. Temperature affects density — warm water is less dense than cold (ice floats because ice is less dense than liquid water).