Drugs & toxicology

Mirtazapine unit converter

Tetracyclic antidepressant drug level for therapeutic drug monitoring

Also known as: Remeron

Converter

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

ng/mL nmol/L µmol/L µg/dL ng/dL

Worked example

55 ng/mL (middle of the reference range) = 207 nmol/L

Conversion formulas

nmol/L	nmol/L = ng/mL × 3.769	ng/mL = nmol/L × 0.2653
µmol/L	µmol/L = ng/mL × 0.003769	ng/mL = µmol/L × 265.4
µg/dL	µg/dL = ng/mL × 0.1	ng/mL = µg/dL × 10
ng/dL	ng/dL = ng/mL × 100	ng/mL = ng/dL × 0.01

Reference range

Unit	Adults
ng/mL	30 – 80
nmol/L	113.1 – 301.5
µmol/L	0.1131 – 0.3015
µg/dL	3 – 8
ng/dL	3000 – 8000

Source: Therapeutic Drug Monitoring in Psychiatry (Pharmaceuticals 2024), AGNP reference ranges · Last reviewed: 2026-10-14

Note from the source: AGNP consensus reference range 30-80 ng/mL

Frequently asked questions

How do I convert Mirtazapine from ng/mL to nmol/L?

nmol/L = ng/mL × 3.769. In the other direction: ng/mL = nmol/L × 0.2653.

What is the reference range of Mirtazapine?

For adults the range is 30 – 80 ng/mL (Therapeutic Drug Monitoring in Psychiatry (Pharmaceuticals 2024), AGNP reference ranges). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Mirtazapine?

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