Density Unit Converter

Enter a density value in any field to compare material density across metric, imperial, laboratory, petroleum, and traditional systems.

Metric System

SI-based density units applicable to most scientific calculations.

Kilograms per Cubic Meter (kg/m³)

Grams per Cubic Centimeter (g/cm³)

Grams per Milliliter (g/mL)

Milligrams per Milliliter (mg/mL)

Tonnes per Cubic Meter (t/m³)

Legacy measurements used in engineering, manufacturing, and civil works.

Pounds per Cubic Foot (lb/ft³)

Pounds per Cubic Inch (lb/in³)

Ounces per Cubic Inch (oz/in³)

Slugs per Cubic Foot (slug/ft³)

Density expressions used in chemistry, biology, and pharmaceuticals.

Grams per Liter (g/L)

Milligrams per Liter (mg/L)

Micrograms per Milliliter (µg/mL)

Measurement systems used in oil, gas, and logistics industries.

Kilograms per Liter (kg/L)

API Gravity (°API)

Specific Gravity (SG)

Practical density tips

Enter positive or negative values to estimate density deviations for materials or mixtures.
API gravity converts to density assuming standard temperature conditions (60°F/15.6°C).
Specific gravity is treated as relative to water at 4°C, equivalent to g/cm³ numerically.