Drugs & toxicology

Voriconazole unit converter

Antifungal drug trough level for therapeutic drug monitoring

Also known as: Vfend

Converter

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

µg/mL µmol/L mg/dL µg/dL µg/L nmol/L

Worked example

3.25 µg/mL (middle of the reference range) = 9.3 µmol/L

Conversion formulas

µmol/L	µmol/L = µg/mL × 2.863	µg/mL = µmol/L × 0.3493
mg/dL	mg/dL = µg/mL × 0.1	µg/mL = mg/dL × 10
µg/dL	µg/dL = µg/mL × 100	µg/mL = µg/dL × 0.01
µg/L	µg/L = µg/mL × 1000	µg/mL = µg/L × 0.001
nmol/L	nmol/L = µg/mL × 2863	µg/mL = nmol/L × 0.0003493

Reference range

Unit	Adults
µg/mL	1 – 5.5
µmol/L	2.863 – 15.75
mg/dL	0.1 – 0.55
µg/dL	100 – 550
µg/L	1000 – 5500
nmol/L	2863 – 15 745

Source: Voriconazole: a review of adjustment programs guided by TDM (PMC), target range of the British guideline · Last reviewed: 2026-10-14

Note from the source: Trough target 1.0-5.5 mg/L (British Society for Medical Mycology 2014); suggested limits vary between 0.25-2 and 4-6 mg/L

Frequently asked questions

How do I convert Voriconazole from µg/mL to mg/dL?

mg/dL = µg/mL × 0.1. In the other direction: µg/mL = mg/dL × 10.

What is the reference range of Voriconazole?

For adults the range is 1 – 5.5 µg/mL (Voriconazole: a review of adjustment programs guided by TDM (PMC), target range of the British guideline). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Voriconazole?

Common units are µg/mL, µmol/L, mg/dL, µg/dL, µg/L, nmol/L.