lb/ft³ to kg/m³ Converter
Enter the density in lb/ft³ below to convert it to kg/m³.
Convert lb/ft³ to kg/m³
Enter a value in lb/ft³ (lb/ft³) to convert to kg/m³ (kg/m³).
Pound per Cubic Foot to Kilogram per Cubic Meter Conversion Table
Table showing various pound per cubic foot measurements converted to kg/m³. Click any preset value or arrow to load it into the converter.
| lb/ft³ (lb/ft³) | kg/m³ (kg/m³) |
|---|---|
| 1 lb/ft³ | 16.0184634 kg/m³ |
| 2 lb/ft³ | 32.0369267 kg/m³ |
| 5 lb/ft³ | 80.0923169 kg/m³ |
| 10 lb/ft³ | 160.1846337 kg/m³ |
| 15 lb/ft³ | 240.2769505 kg/m³ |
| 20 lb/ft³ | 320.3692674 kg/m³ |
| 25 lb/ft³ | 400.4615842 kg/m³ |
| 30 lb/ft³ | 480.5539011 kg/m³ |
| 31.2 lb/ft³ | 499.7760571 kg/m³ |
| 50 lb/ft³ | 800.9231685 kg/m³ |
How to Convert lb/ft³ to kg/m³
To convert lb/ft³ to kg/m³, multiply the density by the following conversion ratio: 16.0184634 kg/m³/pound per cubic foot.
Since one pound per cubic foot is equal to 16.0184634 kg/m³, you can use this simple formula to convert:
The density in kg/m³ is equal to the density in lb/ft³ multiplied by 16.0184634.
For example, here's how to convert 62.4 lb/ft³ to kg/m³ using the formula above.
How Many kg/m³ Are in a Pound per Cubic Foot?
There are 16.0184634 kg/m³ in a pound per cubic foot, which is why we use this value in the formula above.
Our pound per cubic foot to kilogram per cubic meter calculator automatically converts your density measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
lb/ft³ and kg/m³ are both units used to measure density. Keep reading to learn more about each unit.
What Is a Pound per Cubic Foot?
A pound per cubic foot is a unit of density equal to 16.0184634 kg/m³ (kg/m³), the base unit for density. Equal to 16.0185 kg/m³. [1]
The pound per cubic foot is classified as a US customary and imperial unit of density. lb/ft³ can be abbreviated as lb/ft³; for example, 1 pound per cubic foot can be written as 1 lb/ft³.
When working with lb/ft³ (lb/ft³) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, lb/ft³ (lb/ft³) are widely used across standard density applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Kilogram per Cubic Meter?
SI coherent unit of density (identically equal to 1 g/L). It serves as a primary reference unit for measuring density across scientific and practical applications. [2]
The kilogram per cubic meter is classified as an International System of Units (SI) unit of density. kg/m³ can be abbreviated as kg/m³; for example, 1 kilogram per cubic meter can be written as 1 kg/m³.
As the primary coherent reference unit for density in this category, all other density units are mathematically anchored to the kilogram per cubic meter (kg/m³).
In practice, kg/m³ (kg/m³) are widely used across standard density applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting density between lb/ft³ (lb/ft³) and kg/m³ (kg/m³), keep full floating-point precision (1 lb/ft³ = 16.0184634 kg/m³; 1 kg/m³ = 0.062428 lb/ft³) during intermediate calculations and round only the final kilogram per cubic meter figure to match your instrument tolerance.
More Pound per Cubic Foot & Kilogram per Cubic Meter Conversions
Need to calculate in the opposite direction? Use our kg/m³ to lb/ft³ converter (kg/m³ to lb/ft³) to switch your starting unit immediately. You can also explore related tools such as converting g/cm³ to kg/m³, converting kg/m³ to g/cm³, or converting g/ml to g/cm³.
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume & Mass Concentration)·Density & Concentration Metrology Standard — lb/ft³ (lb/ft³) to kg/m³ (kg/m³)
- [2]NIST SP 811 SpecificationNIST SP 811 (NIST SP 811 App. B.9 (Mass Density))·Unit Specifications: Pound per Cubic Foot (lb/ft³) & Kilogram per Cubic Meter (kg/m³)
- [3]BIPM ReferenceBIPM (Coherent SI Density Standards (kg/m³))·Conversion Factors & Mathematical Basis (lb/ft³ to kg/m³)