Density Converter
Convert between kg/m³, g/cm³, lb/ft³ and other density units.
Density values arrive in whatever unit a datasheet, textbook or supplier prefers: SI kg/m³ in engineering references, g/cm³ in chemistry, lb/ft³ in US construction materials, and kg/L or g/mL for liquids. The conversions involve cubed length factors, which makes hand calculation unusually error-prone — a slip on one factor becomes a factor-of-a-thousand mistake.
This converter moves any density between kg/m³, g/cm³, g/mL, kg/L, lb/ft³ and lb/in³ instantly. Use it to compare material datasheets across unit systems, convert fluid densities for tank sizing, or check homework without wrestling with exponents.
How to use Density Converter
- 1
Enter the density value
Type the number from your datasheet or problem.
- 2
Choose the source unit
kg/m³, g/cm³, lb/ft³ and more.
- 3
Choose the target unit
The converted density appears instantly.
Features
- Six common density units across SI and imperial systems
- Standards-based factors, not rounded approximations
- Instant bidirectional conversion
Frequently asked questions
Common mistakes to avoid
- Cubing conversion errors — 1 m³ is 1,000,000 cm³, not 100 cm³.
- Ignoring temperature: liquid and gas densities shift noticeably with temperature, so quoted values assume specific conditions.
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