How to Use Density Converter
The Density Converter is invaluable for engineering, science, manufacturing and shipping.
- Enter a value — Any non-negative number.
- Pick the source unit — Metric or imperial.
- Pick the target unit — Or read all eight units in the all-units panel.
- Use the result — For specifications, datasheets, or homework.
Formula & Theory - Density Converter
Density is mass per unit volume. The SI definition is:
ρ = m / V (kg/m³)Common conversion factors (relative to kg/m³):
1 g/cm³ = 1 g/mL = 1 kg/L = 1,000 kg/m³
1 lb/ft³ ≈ 16.0185 kg/m³
1 lb/in³ ≈ 27,679.9 kg/m³
1 oz/in³ ≈ 1,730.0 kg/m³
1 slug/ft³ ≈ 515.379 kg/m³| Unit | kg/m³ equivalent |
|---|---|
| kg/m³ | 1 |
| g/cm³ | 1,000 |
| g/mL | 1,000 |
| kg/L | 1,000 |
| lb/ft³ | 16.0185 |
| lb/in³ | 27,679.9 |
| oz/in³ | 1,729.99 |
| slug/ft³ | 515.379 |
Reference Densities
- Water: 1.00 g/cm³
- Aluminum: 2.70 g/cm³
- Iron: 7.87 g/cm³
- Lead: 11.34 g/cm³
- Gold: 19.32 g/cm³
Use Cases for Density Converter
The Density Converter is essential in:
- Mechanical engineering — Calculate mass from volume for parts and assemblies.
- Materials science — Compare densities of metals, polymers, and composites.
- Civil engineering — Translate concrete and steel densities between metric and imperial.
- Chemistry labs — Convert reagent density values across units.
- Shipping & logistics — Translate cargo density between lb/ft³ and kg/m³.
- 3D printing — Convert filament density values for slicer settings.
The Density Converter gives you a single, exact source of truth across all common density units.