Density Converter
Convert between kg/m³, g/cm³, lb/ft³, and more
Conversion Formula:
Multiply by 0.001
Common Conversions
Density Facts
- Density is defined as mass per unit volume, with the SI unit being kg/m³.
- Water has a density of 1000 kg/m³ (1 g/cm³) at 4°C, which is used as a reference point.
- Materials with density lower than water will float, while those with higher density will sink.
- Osmium is the densest naturally occurring element with a density of 22,590 kg/m³.
- Air at sea level has a density of approximately 1.225 kg/m³ at standard temperature and pressure.
Density Equivalents
- 1 g/cm³ = 1000 kg/m³ = 1 kg/L = 1 g/mL
- 1 g/cm³ = 62.4 lb/ft³ ≈ 8.35 lb/US gal
- 1 lb/ft³ = 16.0185 kg/m³ ≈ 0.016 g/cm³
- Pure gold: 19.32 g/cm³
- Lead: 11.34 g/cm³
- Iron/Steel: 7.85 g/cm³
- Aluminum: 2.7 g/cm³
- Ice: 0.917 g/cm³
- Specific gravity is a dimensionless ratio of a material's density to water's density
- A specific gravity of 1.0 means the substance has the same density as water
- Materials with specific gravity < 1.0 float in water
Applications of Density
Density measurements are essential in various fields:
- Material science - identifying materials and assessing material purity
- Engineering - calculating structural loads and buoyancy
- Geology - classifying rocks and minerals
- Metallurgy - quality control in metal production
- Oceanography - studying ocean currents and water masses
- Meteorology - forecasting weather based on air density variations
- Medical diagnostics - measuring bone density for osteoporosis assessment
The Archimedes principle, stating that an object immersed in a fluid experiences an upward force equal to the weight of the fluid it displaces, is the basis for using density to determine if an object will float or sink.
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Visual Comparison
Density Comparison
1000 kg/m³
1.00 t/m³ equivalent
Similar to: Water (4°C)
Almost exactly the same as Water (4°C) (1.00 t/m³)
1.0 g/cm³
1.00 t/m³ equivalent
Similar to: Water (4°C)
Almost exactly the same as Water (4°C) (1.00 t/m³)
1000 kg/m³
1.00 t/m³
Common Density Reference
Did You Know?
- • Ice floats in water because it's less dense (917 kg/m³) than liquid water (1000 kg/m³)
- • Osmium is the densest naturally occurring element (22,590 kg/m³)
- • The center of the Earth has an estimated density of about 13,000 kg/m³
Mobile tip: Swipe left or right on the unit dropdown to quickly change units, or use the arrow buttons
About the Density Converter
Convert between kg/m³, g/cm³, lb/ft³, and more All conversions run instantly in your browser and nothing you enter is sent to a server.
Common Conversion Formulas
| From | To | Formula |
|---|---|---|
| Kilograms per cubic meter (kg/m³) | Grams per cubic centimeter (g/cm³) | g/cm³ = kg/m³ × 0.001 |
| Kilograms per cubic meter (kg/m³) | Pounds per cubic foot (lb/ft³) | lb/ft³ = kg/m³ × 0.062428 |
| Pounds per cubic foot (lb/ft³) | Pounds per gallon (lb/gal) | lb/gal = lb/ft³ × 0.133681 |
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