Convert Grams per cubic metre to Pounds per cubic inch
Convert Grams per cubic metre (g/m³) to Pounds per cubic inch (lb/in³) instantly and accurately.
Conversion Formula
lb/in³ = g/m³ × 3.612729200e-8
About Grams per cubic metre
The gram per cubic metre (g/m³) equals 10⁻³ kg/m³, used for atmospheric moisture content and trace-gas emissions. Absolute humidity at 20°C is 8-15 g/m³ depending on relative humidity; ISO 13443 limits pipeline natural gas moisture to 65 mg/m³ (0.065 g/m³). Numerically equal to mg/L, simplifying conversion between air and water standards. 1 g/m³ = 10⁻³ kg/m³ = 1 mg/L.
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
| Grams per cubic metre (g/m³) | Pounds per cubic inch (lb/in³) |
|---|---|
| 1 g/m³ | 3.613 × 10-8 lb/in³ |
| 2 g/m³ | 7.225 × 10-8 lb/in³ |
| 5 g/m³ | 1.806 × 10-7 lb/in³ |
| 10 g/m³ | 3.613 × 10-7 lb/in³ |
| 25 g/m³ | 9.032 × 10-7 lb/in³ |
| 50 g/m³ | 1.806 × 10-6 lb/in³ |
| 100 g/m³ | 3.613 × 10-6 lb/in³ |