How do I convert Phenobarbital from µg/mL to µmol/L?

µmol/L = µg/mL × 4.306. For example, 20 µg/mL equals 86.1 µmol/L.

How many µmol/L are 20 µg/mL?

20 µg/mL equal 86.1 µmol/L (Phenobarbital).

Drugs & toxicology

µmol/L = µg/mL × 4.306

Enter a value in any unit and all other units fill in.

µg/mL µmol/L

µg/mL → µmol/L	µmol/L = µg/mL × 4.306
µmol/L → µg/mL	µg/mL = µmol/L × 0.2322

Highlighted: values inside the adult reference range.

10 – 40 µg/mL = 43.06 – 172.2 µmol/L