Convert Grams per cubic metre to Milligrams per cubic metre
Convert Grams per cubic metre (g/m³) to Milligrams per cubic metre (mg/m³) instantly and accurately.
Conversion Formula
mg/m³ = g/m³ × 1000
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 Milligrams per cubic metre
The milligram per cubic metre (mg/m³) equals 10⁻⁶ kg/m³, the reference unit for industrial occupational exposure limits (OELs). NIOSH REL for respirable crystalline silica is 0.05 mg/m³; OSHA PEL for Portland cement 15 mg/m³; ACGIH TLV for calcium carbonate dust 10 mg/m³. Numerically equal to µg/L, bridging airborne and aqueous analysis. 1 mg/m³ = 10⁻⁶ kg/m³ = 1 µg/L.
Quick Reference Table
| Grams per cubic metre (g/m³) | Milligrams per cubic metre (mg/m³) |
|---|---|
| 1 g/m³ | 1000 mg/m³ |
| 2 g/m³ | 2000 mg/m³ |
| 5 g/m³ | 5000 mg/m³ |
| 10 g/m³ | 10000 mg/m³ |
| 25 g/m³ | 25000 mg/m³ |
| 50 g/m³ | 50000 mg/m³ |
| 100 g/m³ | 100000 mg/m³ |