Conversion Formula
$$kg/m³ = slug/ft³ \times 515.379$$
Multiply the value in Slug per Cubic Foot by 515.379 to get Kilogram per Cubic Meter.
slug/ft³ to kg/m³ Conversion Table
| Slug per Cubic Foot (slug/ft³) | Kilogram per Cubic Meter (kg/m³) |
|---|---|
| 0.1 | 51.5379 |
| 0.5 | 257.689 |
| 1 | 515.379 |
| 2 | 1,030.76 |
| 5 | 2,576.89 |
| 10 | 5,153.79 |
| 25 | 12,884.5 |
| 50 | 25,768.9 |
| 100 | 51,537.9 |
| 250 | 128,845 |
| 500 | 257,689 |
| 1,000 | 515,379 |
slug/ft³ to kg/m³ 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.
Slug per Cubic Foot: US FPS density unit for dynamics. Water = 1.94 slug/ft³. Used in fluid dynamics with F=ma in US units.
Kilogram per Cubic Meter: SI unit of density. Water at 4°C has a density of approximately 1000 kg/m³.