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Urine & CSF

Urinary free cortisol (24-h): convert µg/24 h to nmol/24 h

nmol/24 h = µg/24 h × 2.759

Calculator

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

Conversion formulas

µg/24 h → nmol/24 hnmol/24 h = µg/24 h × 2.759
nmol/24 h → µg/24 hµg/24 h = nmol/24 h × 0.3625

Conversion table

Highlighted: values inside the adult reference range.

µg/24 hnmol/24 h
1027.59
2055.18
3082.77
40110.4
50137.9
60165.5
70193.1
80220.7
90248.3
100275.9
110303.5
120331.1
130358.7
140386.2
150413.8

Reference range

0 – 60 µg/24 h = 0 – 165.5 nmol/24 h

Source: MedlinePlus (NLM): Cortisol urine test · Last reviewed: 2026-10-14

Frequently asked questions

How do I convert Urinary free cortisol (24-h) from µg/24 h to nmol/24 h?

nmol/24 h = µg/24 h × 2.759. For example, 30 µg/24 h equals 82.8 nmol/24 h.

How many nmol/24 h are 30 µg/24 h?

30 µg/24 h equal 82.8 nmol/24 h (Urinary free cortisol (24-h)).

How do I convert Urinary free cortisol (24-h) from nmol/24 h back to µg/24 h?

µg/24 h = nmol/24 h × 0.3625.

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