1 pound per cubic foot [lb/ft3] = 16.018463 kilogram per cubic meter [kg/m3]
Example: 1 pound per cubic foot [lb/ft3] equals 16.018463 kilogram per cubic meter [kg/m3].
Examples
1 pound per cubic foot [lb/ft3] = 16.018463 kilogram per cubic meter [kg/m3]
2 pound per cubic foot [lb/ft3] = 32.036927 kilogram per cubic meter [kg/m3]
5 pound per cubic foot [lb/ft3] = 80.092317 kilogram per cubic meter [kg/m3]
10 pound per cubic foot [lb/ft3] = 160.184634 kilogram per cubic meter [kg/m3]
20 pound per cubic foot [lb/ft3] = 320.369267 kilogram per cubic meter [kg/m3]
25 pound per cubic foot [lb/ft3] = 400.461584 kilogram per cubic meter [kg/m3]
Practical Uses for lb/ft3 to kg/m3
quick homework checksshopping and product comparisonstravel planningprofessional estimatesDIY and household measurementsgeneral reference
Sources and Accuracy
Density conversions use kilogram per cubic meter as the reference unit and include metric, laboratory, and imperial material-density units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
pound per cubic foot [lb/ft3]
Definition
Pounds per cubic foot is a customary density unit based on pounds of mass per cubic foot of volume.
History
The unit developed from customary weight and volume measures used in building and material trades.
Current use
lb/ft3 is used for soil, wood, concrete, insulation, shipping, and material specifications.
kilogram per cubic meter [kg/m3]
Definition
Kilograms per cubic meter is the SI derived unit of density.
History
The unit follows directly from SI mass and volume measurement.
Current use
kg/m3 is used for materials, liquids, gases, construction, engineering, and scientific data sheets.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is pound per cubic foot [lb/ft3].
Confirm the target unit is kilogram per cubic meter [kg/m3].
How do I convert pound per cubic foot to kilogram per cubic meter?
Use this formula: 1 pound per cubic foot [lb/ft3] = 16.018463 kilogram per cubic meter [kg/m3] Enter your value in the calculator and the result updates instantly.
How many kilogram per cubic meter are in 1 pound per cubic foot?
1 pound per cubic foot [lb/ft3] equals 16.018463 kilogram per cubic meter [kg/m3].
Can I reverse this conversion?
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.