Drugs & toxicology

Haloperidol unit converter

Typical antipsychotic drug level for therapeutic drug monitoring

Also known as: Haldol

Converter

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

ng/mL nmol/L µg/dL ng/dL ng/L

Worked example

5.5 ng/mL (middle of the reference range) = 14.6 nmol/L

Conversion formulas

nmol/L	nmol/L = ng/mL × 2.661	ng/mL = nmol/L × 0.3759
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
ng/L	ng/L = ng/mL × 1000	ng/mL = ng/L × 0.001

Reference range

Unit	Adults
ng/mL	1 – 10
nmol/L	2.661 – 26.61
µg/dL	0.1 – 1
ng/dL	100 – 1000
ng/L	1000 – 10 000

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

Note from the source: AGNP consensus reference range 1-10 ng/mL

Frequently asked questions

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

nmol/L = ng/mL × 2.661. In the other direction: ng/mL = nmol/L × 0.3759.

What is the reference range of Haloperidol?

For adults the range is 1 – 10 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 Haloperidol?

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