AkCalculators

Density conversion — from g/cm³ to lb/ft³ and beyond

Density is mass per unit volume. It describes how compact matter is and is fundamental to science and engineering. Water at 4 °C has a density of 1000 kg/m³ (1 g/cm³). This converter handles scientific, industrial, and everyday density units.

Common density units

• kg/m³ — SI unit, default in engineering.
• g/cm³ — Common in chemistry (1 g/cm³ = 1000 kg/m³).
• g/mL — Equivalent to g/cm³.
• lb/ft³ — Engineering (imperial system).
• lb/in³ — Used in materials science for metals.
• slug/ft³ — Rare, used in some US physics/engineering contexts.
• °API — Petroleum density unit.

Conversion method

All conversions are performed via kg/m³ as the canonical unit. Each unit has a precise multiplier relative to kg/m³, ensuring accuracy.

Worked examples

Example 1: 1 g/cm³ = 1000 kg/m³.

Example 2: 62.4 lb/ft³ = 999.79 kg/m³ (fresh water).

Example 3: Steel (~7.85 g/cm³) = 7850 kg/m³ = 490 lb/ft³.

Applications

• Physics: Buoyancy, Archimedes principle, material science.
• Chemistry: Substance identification, purity checks.
• Engineering: Fluid dynamics, construction materials.
• Oil & Gas: Crude density (API gravity).
• Food science: Density of milk, oil, sugar syrups.

FAQ

Conclusion

This Density Converter simplifies switching between metric, imperial, and industry-specific units. Bookmark it for quick reference in labs, engineering, or oilfield calculations.