Hormones

ACTH unit converter

Adrenocorticotropic hormone (controls cortisol release)

Also known as: Adrenocorticotropic hormone, Adrenocorticotrophic hormone, Corticotropin, Corticotrophin, Adrenocorticotropes Hormon, Kortikotropin

Converter

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

pmol/L pg/mL = ng/L ng/dL

Worked example

30.5 pg/mL (middle of the reference range) = 6.72 pmol/L

Conversion formulas

pmol/L	pmol/L = pg/mL × 0.2202	pg/mL = pmol/L × 4.541
ng/dL	ng/dL = pg/mL × 0.1	pg/mL = ng/dL × 10

Reference range

Unit	Adults
pmol/L	1.982 – 11.45
pg/mL = ng/L	9 – 52
ng/dL	0.9 – 5.2

Source: MedlinePlus (NLM): ACTH blood test · Last reviewed: 2026-10-14

Note from the source: Early-morning sample: 9-52 pg/mL (2-12 pmol/L) (MedlinePlus)

Frequently asked questions

How do I convert ACTH from pg/mL to pmol/L?

pmol/L = pg/mL × 0.2202. In the other direction: pg/mL = pmol/L × 4.541.

What is the reference range of ACTH?

For adults the range is 9 – 52 pg/mL (MedlinePlus (NLM): ACTH blood test). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for ACTH?

Common units are pmol/L, pg/mL, ng/dL.