Density Converter
Convert between kg/m³, g/cm³, lb/ft³, and more. Essential for materials science and engineering.
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Density = mass/volume. SI: kg/m³. Chemistry: g/cm³. US engineering: lb/ft³. Water = 1,000 kg/m³ (1 g/cm³) at 4°C — the reference point.
Specific Gravity
Ratio of density to water. Steel: SG ≈ 7.85 (7.85× denser than water). Simplifies engineering calculations.
Density in Materials Selection
Aluminium (2,700 kg/m³) ≈ 1/3 density of steel (7,850 kg/m³). Why it's preferred in aerospace.
How to Use This Calculator
- Select 'Density'
Choose the category from the dropdown.
- Select your source unit
Pick the unit you're converting from.
- Enter the value
Type the number. Results update instantly.
- Select your target unit
Choose the unit you need.
Applications
Materials Engineering
0.1 m³ steel = 785 kg. Same volume aluminium = 270 kg.
Construction
Normal concrete: ~2,400 kg/m³. Lightweight: 1,600–1,900 kg/m³.
Oil and Gas
API gravity: light crude > 31.1° (< 870 kg/m³). Converting API to kg/m³ is standard in petroleum engineering.
Density in Construction
In construction, density is an important factor to consider when selecting building materials. For example, a higher density concrete will provide better structural integrity and durability than a lower density concrete. Our density converter tool can help architects, engineers, and builders determine the appropriate density of materials for their projects.
Frequently Asked Questions
How do you convert kg/m³ to g/cm³?
Divide by 1,000. 2,700 kg/m³ = 2.7 g/cm³ (aluminium).
How do you convert g/cm³ to lb/ft³?
Multiply by 62.428. 7.85 g/cm³ (steel) = 490.1 lb/ft³.
Density of water?
1,000 kg/m³ or 1 g/cm³ at 4°C. The reference for specific gravity.
How do you convert density from one unit to another?
Our density converter tool allows you to easily convert between different units of density, such as kg/m³ to g/cm³ or g/cm³ to lb/ft³. Simply enter the values in the appropriate fields and click convert.
Can I use your density converter tool for specific industries?
Yes, our density converter tool can be used for a variety of industries such as pharmaceuticals, food processing, and construction materials. For example, you can use it to calculate the density of pills or tablets, or the density of soil or gravel.