Convert Milligrams per litre to Micrograms per litre
Convert Milligrams per litre (mg/L) to Micrograms per litre (µg/L) instantly and accurately.
Conversion Formula
µg/L = mg/L × 1000
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.
About Micrograms per litre
The microgram per litre (µg/L) equals 10⁻⁶ kg/m³, numerically equal to mg/m³, and the standard unit for trace-level water quality. EPA maximum contaminant level for arsenic is 10 µg/L; WHO guideline for lead in drinking water is 10 µg/L; pharmaceutical water-for-injection requires total organic carbon below 500 µg/L. 1 µg/L = 10⁻⁶ kg/m³ = 1 mg/m³ = 1 ppb (mass) in dilute aqueous solutions.
Quick Reference Table
| Milligrams per litre (mg/L) | Micrograms per litre (µg/L) |
|---|---|
| 1 mg/L | 1000 µg/L |
| 2 mg/L | 2000 µg/L |
| 5 mg/L | 5000 µg/L |
| 10 mg/L | 10000 µg/L |
| 25 mg/L | 25000 µg/L |
| 50 mg/L | 50000 µg/L |
| 100 mg/L | 100000 µg/L |