Hormones

Vasopressin (ADH) unit converter

Antidiuretic hormone that controls water balance

Also known as: ADH, Antidiuretic hormone, AVP, Arginine vasopressin, Adiuretin, Antidiuretisches Hormon

Converter

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

pmol/L pg/mL ng/dL

Worked example

2.95 pg/mL (middle of the reference range) = 2.72 pmol/L

Conversion formulas

pmol/L	pmol/L = pg/mL × 0.9223	pg/mL = pmol/L × 1.084
ng/dL	ng/dL = pg/mL × 0.1	pg/mL = ng/dL × 10

Good to know

Vasopressin (antidiuretic hormone, ADH) is reported in pg/mL (= ng/L) or in pmol/L.

pg/mL ÷ 1.084 = pmol/L (exact factor 1.0842).
The assay is difficult and only specialised laboratories run it reliably; the stable fragment copeptin is often measured instead.

Reference range

Unit	Adults
pmol/L	0 – 5.442
pg/mL	0 – 5.9
ng/dL	0 – 0.59

Source: MedlinePlus (NLM): Antidiuretic hormone blood test · Last reviewed: 2026-10-19

Note from the source: 0-5.9 pg/mL (0-5.4 pmol/L). Only very specialised laboratories can run the assay reliably; copeptin is often measured instead (MedlinePlus)

Frequently asked questions

How do I convert Vasopressin (ADH) from pg/mL to pmol/L?

pmol/L = pg/mL × 0.9223. In the other direction: pg/mL = pmol/L × 1.084.

What is the reference range of Vasopressin (ADH)?

For adults the range is 0 – 5.9 pg/mL (MedlinePlus (NLM): Antidiuretic hormone 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 Vasopressin (ADH)?

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