Conversion Formula
$$\rho_{\text{lb/ft³}} = \rho_{\text{kg/m³}} \times 0.062428$$
Multiply kg/m³ by 0.062428 to get lb/ft³.
kg/m³ to lb/ft³ Conversion Table
| Kilogram per Cubic Meter (kg/m³) | Pound per Cubic Foot (lb/ft³) |
|---|---|
| 0.1 | 0.0062428 |
| 0.5 | 0.031214 |
| 1 | 0.062428 |
| 2 | 0.124856 |
| 5 | 0.31214 |
| 10 | 0.62428 |
| 25 | 1.5607 |
| 50 | 3.1214 |
| 100 | 6.2428 |
| 250 | 15.607 |
| 500 | 31.214 |
| 1,000 | 62.428 |
kg/m³ to lb/ft³ in Engineering
Density conversions are critical for fluid mechanics, material selection, concrete mix design, and petroleum engineering. Specific gravity (relative to water at 4°C) is commonly used as a dimensionless density ratio across all disciplines.
Kilogram per Cubic Meter: SI unit of density. Water at 4°C has a density of approximately 1000 kg/m³.
Pound per Cubic Foot: Primary US density unit. Water = 62.4 lb/ft³. Used for soil, concrete, aggregate, and material densities.