Density Converter
Convert density units with the factor behind each answer. Density is mass divided by volume.
1 kg/m³ = 0.06242796058 lb/ft³
Common conversions
- 1 kg/m³ = 0.06242796058 lb/ft³
- 1 lb/ft³ = 16.01846337 kg/m³
- 1 g/cm³ = 1,000 kg/m³
- 1 kg/m³ = 0.001 g/cm³
- 1 lb/in³ = 27.67990471 g/cm³
Mass over volume
Water is about 1,000 kg/m³ (1 g/cm³). Copper is about 8,960 kg/m³ and aluminium about 2,700 kg/m³, which is why the cable conductor mass depends on the material.
US gallons in lb/gal
lb/gal here uses the US gallon. A fluid quoted per imperial gallon has a different number for the same density.
Unit factors
Every unit in terms of the base unit shown. To convert, multiply by the factor of the unit you have and divide by the factor of the unit you want.
| Unit | Equals | What it is |
|---|---|---|
| g/L | 1 kg/m³ | Gram per litre, equal to kg/m³. |
| kg/m³ | 1 kg/m³ | Kilogram per cubic metre, the SI unit of density. |
| kg/L | 1,000 kg/m³ | Kilogram per litre, equal to g/cm³. |
| g/cm³ | 1,000 kg/m³ | Gram per cubic centimetre. Water is about 1 g/cm³. |
| lb/ft³ | 16.01846337 kg/m³ | Pound per cubic foot. |
| lb/in³ | 27,679.90471 kg/m³ | Pound per cubic inch. |
| lb/gal | 119.8264273 kg/m³ | Pound per US gallon. |
Frequently asked questions
What is the formula to convert kg/m³ to lb/ft³?
lb/ft³ = kg/m³ × 0.06242796058. For example, 8,960 kg/m³ is 559.3545268 lb/ft³.
How do I convert lb/ft³ back to kg/m³?
kg/m³ = lb/ft³ × 16.01846337. The Swap button above reverses the direction for any pair of units.
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