- Enter Density — Type any numeric value.
- Select Units — Choose from 10 density units: kg/m³, g/cm³, g/mL, kg/L, t/m³, lb/ft³, lb/in³, lb/gal, oz/in³, grain/ft³.
- See Results — Real-time conversion with all equivalents.
- Copy — Click 'Copy' to copy result.
Density Converter — Convert Between Density Units
The Density Converter is a free, instant-use tool for converting between 10 density units. Whether you're working in chemistry, materials science, engineering, manufacturing, or any field involving material properties, this tool provides accurate real-time conversions between metric, imperial, and specialty density units.
All calculations run entirely in your browser. No data is sent to any server.
Supported Units
- kg/m³ — The SI unit of density. Kilograms per cubic meter. Water = 1,000 kg/m³. Used in engineering, physics, and industry.
- g/cm³ — Grams per cubic centimeter. The CGS unit. Water = 1 g/cm³. Numerically equals specific gravity. Used extensively in chemistry and geology.
- g/mL — Grams per milliliter. Identical to g/cm³ in value. Common in laboratory and pharmaceutical contexts.
- kg/L — Kilograms per liter. Also identical to g/cm³ in value. Used in food science and industrial chemistry.
- tonne/m³ — Tonnes per cubic meter. Same as g/cm³ and kg/L. Used for large-scale industrial measurements.
- lb/ft³ — Pounds per cubic foot. The primary imperial density unit. Water ≈ 62.43 lb/ft³. Used in US construction and engineering.
- lb/in³ — Pounds per cubic inch. Used for metal and material specifications in the US. Steel ≈ 0.284 lb/in³.
- lb/gal (US) — Pounds per US gallon. Used for liquid density in the US. Water ≈ 8.345 lb/gal.
- oz/in³ — Ounces per cubic inch. Used for smaller material samples.
- grain/ft³ — Grains per cubic foot. Used in some specialized applications.
Common Material Densities
- Air (sea level): 1.225 kg/m³
- Water: 1,000 kg/m³ (1 g/cm³)
- Aluminum: 2,700 kg/m³
- Steel: 7,850 kg/m³
- Copper: 8,960 kg/m³
- Gold: 19,320 kg/m³
Features
- 10 Units — SI, CGS, imperial, and specialty density units.
- Real-Time — Instant conversion as you type.
- All-Unit View — See all 9 equivalents simultaneously.
- Swap & Copy — Quick direction swap and clipboard copy.
Common Use Cases
- Chemistry — Convert between lab units (g/mL) and SI units (kg/m³).
- Engineering — Convert material densities between metric and imperial.
- Manufacturing — Calculate material weights from density and volume.
- Geology — Compare mineral and rock densities.
Privacy
All conversions run in your browser. No data is transmitted. Works offline.