Convert Grams per cubic metre to Kilograms per cubic metre
Convert Grams per cubic metre (g/m³) to Kilograms per cubic metre (kg/m³) instantly and accurately.
Conversion Formula
kg/m³ = g/m³ × 0.001
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 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.
Quick Reference Table
| Grams per cubic metre (g/m³) | Kilograms per cubic metre (kg/m³) |
|---|---|
| 1 g/m³ | 0.001 kg/m³ |
| 2 g/m³ | 0.002 kg/m³ |
| 5 g/m³ | 0.005 kg/m³ |
| 10 g/m³ | 0.01 kg/m³ |
| 25 g/m³ | 0.025 kg/m³ |
| 50 g/m³ | 0.05 kg/m³ |
| 100 g/m³ | 0.1 kg/m³ |