Convert Grams per cubic metre to Milligrams per litre
Convert Grams per cubic metre (g/m³) to Milligrams per litre (mg/L) instantly and accurately.
Conversion Formula
mg/L = g/m³ × 1
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 litre
The milligram per litre (mg/L) equals 10⁻³ kg/m³ and is the dominant unit in water chemistry and environmental analysis. Numerically equivalent to ppm (mass) for dilute aqueous solutions; WHO drinking-water guideline for nitrate is 50 mg/L, for fluoride 1.5 mg/L. Biological oxygen demand (BOD), chemical oxygen demand (COD), and total suspended solids (TSS) are all reported in mg/L. 1 mg/L = 10⁻³ kg/m³ = 1 g/m³.
Quick Reference Table
| Grams per cubic metre (g/m³) | Milligrams per litre (mg/L) |
|---|---|
| 1 g/m³ | 1 mg/L |
| 2 g/m³ | 2 mg/L |
| 5 g/m³ | 5 mg/L |
| 10 g/m³ | 10 mg/L |
| 25 g/m³ | 25 mg/L |
| 50 g/m³ | 50 mg/L |
| 100 g/m³ | 100 mg/L |