Heart & coagulation

BNP unit converter

Heart failure marker (B-type natriuretic peptide)

Also known as: B-type natriuretic peptide, Brain natriuretic peptide, BNP-32, Peptide natriurétique de type B, Péptido natriurético tipo B, Peptide natriuretico di tipo B

Converter

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

pmol/L pg/mL = ng/L µg/L ng/dL

Worked example

50 pg/mL (middle of the reference range) = 14.4 pmol/L

Conversion formulas

pmol/L	pmol/L = pg/mL × 0.2887	pg/mL = pmol/L × 3.464
µg/L	µg/L = pg/mL × 0.001	pg/mL = µg/L × 1000
ng/dL	ng/dL = pg/mL × 0.1	pg/mL = ng/dL × 10

Reference range

Unit	Adults
pmol/L	0 – 28.87
pg/mL = ng/L	0 – 100
µg/L	0 – 0.1
ng/dL	0 – 10

Source: MedlinePlus (NLM): Brain natriuretic peptide test · Last reviewed: 2026-10-14

Note from the source: Below 100 pg/mL suggests that heart failure is unlikely; rises with age (MedlinePlus)

Frequently asked questions

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

pmol/L = pg/mL × 0.2887. In the other direction: pg/mL = pmol/L × 3.464.

What is the reference range of BNP?

For adults the range is 0 – 100 pg/mL (MedlinePlus (NLM): Brain natriuretic peptide 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 BNP?

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