Conversion Formula
$$\rho_{\text{kg/m³}} = SG \times 1000$$
Multiply specific gravity by 1000 to get kg/m³.
SG to kg/m³ Conversion Table
| Specific Gravity (SG) | Kilogram per Cubic Meter (kg/m³) |
|---|---|
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
SG 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.
Specific Gravity: Dimensionless ratio of density to water at 4°C (1000 kg/m³). SG = 1.0 for water. Universal engineering reference.
Kilogram per Cubic Meter: SI unit of density. Water at 4°C has a density of approximately 1000 kg/m³.