How do I convert Cortisol (CSF) from µg/dL to nmol/L?

nmol/L = µg/dL × 27.59. In the other direction: µg/dL = nmol/L × 0.03625.

Which units are used for Cortisol (CSF)?

Common units are µg/dL, nmol/L.

Urine & CSF

Cortisol in cerebrospinal fluid (stress axis in the CNS)

Also known as: Cortisol (Liquor)

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

µg/dL nmol/L

100 nmol/L = 3.62 µg/dL

nmol/L	nmol/L = µg/dL × 27.59	µg/dL = nmol/L × 0.03625

Cortisol (CSF) is reported in µg/dL or nmol/L. The page converts between the units only.

nmol/L × 0.03625 = µg/dL (exact factor 0.03625).
CSF values are only meaningful together with a blood sample taken at the same time; no established reference range is listed here.

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Source: PubChem: Cortisol · Last reviewed: 2026-10-19

Note from the source: No established reference range; the page converts units only. Mass-to-amount conversion uses a molar mass of 362.5 g/mol.