Convert Milligrams per cubic metre to Milligrams per litre
Convert Milligrams per cubic metre (mg/m³) to Milligrams per litre (mg/L) instantly and accurately.
Conversion Formula
mg/L = mg/m³ × 0.001
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.
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
| Milligrams per cubic metre (mg/m³) | Milligrams per litre (mg/L) |
|---|---|
| 1 mg/m³ | 0.001 mg/L |
| 2 mg/m³ | 0.002 mg/L |
| 5 mg/m³ | 0.005 mg/L |
| 10 mg/m³ | 0.01 mg/L |
| 25 mg/m³ | 0.025 mg/L |
| 50 mg/m³ | 0.05 mg/L |
| 100 mg/m³ | 0.1 mg/L |