Convert Kilograms per cubic metre to Pounds per cubic inch
Convert Kilograms per cubic metre (kg/m³) to Pounds per cubic inch (lb/in³) instantly and accurately.
Conversion Formula
lb/in³ = kg/m³ × 3.612729200e-5
About Kilograms per cubic metre
The kilogram per cubic metre (kg/m³) is the SI coherent derived unit of density. Air at standard sea level is ≈1.225 kg/m³; fresh water at 4°C is ≈999.97 kg/m³; liquid mercury is 13 534 kg/m³; osmium (densest stable element) is 22 590 kg/m³. Used in the continuity equation, Bernoulli's principle, and all SI-based fluid dynamics calculations. 1 kg/m³ = 1 g/L ≈0.06243 lb/ft³.
About Pounds per cubic inch
The pound per cubic inch (lb/in³) equals ≈27 679.9 kg/m³, the standard US customary unit for engineering material density. Mechanical engineering handbooks list metals in lb/in³: steel 0.284, aluminium 0.098, copper 0.324, tungsten 0.697, lead 0.410. FEA software (ANSYS, Nastran) configured with US unit sets reads material density as lb/in³. 1 lb/in³ = 1728 lb/ft³ = 16 oz/in³ ≈27 679.9 kg/m³.
Quick Reference Table
| Kilograms per cubic metre (kg/m³) | Pounds per cubic inch (lb/in³) |
|---|---|
| 1 kg/m³ | 3.613 × 10-5 lb/in³ |
| 2 kg/m³ | 7.225 × 10-5 lb/in³ |
| 5 kg/m³ | 0.000180636 lb/in³ |
| 10 kg/m³ | 0.000361273 lb/in³ |
| 25 kg/m³ | 0.000903182 lb/in³ |
| 50 kg/m³ | 0.00180636 lb/in³ |
| 100 kg/m³ | 0.00361273 lb/in³ |