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Neurology & psychiatry

Cortisol (saliva, morning): convert µg/dL to nmol/L

nmol/L = µg/dL × 27.59

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

Conversion formulas

µg/dL → nmol/Lnmol/L = µg/dL × 27.59
nmol/L → µg/dLµg/dL = nmol/L × 0.03625

Conversion table

Highlighted: values inside the adult reference range.

µg/dLnmol/L
0.051.38
0.12.759
0.154.138
0.25.518
0.256.897
0.38.277
0.359.656
0.411.04
0.4512.42
0.513.79
0.5515.17
0.616.55
0.6517.93
0.719.31
0.7520.69
0.822.07

Reference range

0 – 0.3298 µg/dL = 0 – 9.1 nmol/L

Source: Newcastle Hospitals Laboratories: Salivary cortisol · Last reviewed: 2026-10-19

Frequently asked questions

How do I convert Cortisol (saliva, morning) from µg/dL to nmol/L?

nmol/L = µg/dL × 27.59. For example, 0.15 µg/dL equals 4.14 nmol/L.

How many nmol/L are 0.15 µg/dL?

0.15 µg/dL equal 4.14 nmol/L (Cortisol (saliva, morning)).

How do I convert Cortisol (saliva, morning) from nmol/L back to µg/dL?

µg/dL = nmol/L × 0.03625.

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