Specific Gravity to kg/m³ Converter

Specific gravity (SG) is a dimensionless ratio that compares the density of a substance to the density of a reference substance, usually water at 4°C. This converter takes your specific gravity value and accurately calculates its equivalent mass density in kilograms per cubic meter (kg/m³).

The relationship is straightforward: Density = SG x Density_{Water}. Since the density of water at standard conditions (1000 kg/m³) serves as our baseline, multiplying your SG value by 1000 yields the precise mass density. For instance, if a material has an SG of 2.5, this tool calculates its density to be 2500 kg/m³.

• SG: Relative measurement (unitless).
• kg/m³: Absolute mass density (mass per volume).

To maximize the accuracy of your density calculations, follow these best practices before inputting your specific gravity value.

• Identify Units: Confirm whether your starting SG measurement is based on water or another fluid, as this affects the reference density used for calculation.
• Use Reference Data: When working with common materials (like steel or oil), cross-reference the calculated kg/m³ value against established industry tables to quickly spot potential errors.
• Test Extremes: If you are calculating a range of densities, test both the minimum and maximum expected SG values within the tool to ensure the conversion handles the full spectrum correctly.

By following these steps, you ensure your final kg/m³ figure is reliable for professional applications.