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Cortisol (Free, 24h Urine)

Urine

Cortisol (Free, 24h Urine)

Also known as: UFC, 24h Urine Cortisol

COMMON RANGE

3.5 – 45

µg/24h

0

92

M

Mayo Clinic Laboratories

Adult

See all sources ↓

CONVERT & COMPARE

µg/24h

=

67

nmol/24h

=

24.3

mcg/24h

=

24.3

ug/24h

Reference ranges by source

Published adult intervals: 4, from 3 named sources, shown in µg/24h.

SOURCE

SEX

AGE

RANGE

VISUAL

CITE

M

Mayo Clinic Laboratories

All

≥18y

3.5 – 45 µg/24h

L

Labcorp

Male

≥18y

11 – 84 µg/24h

L

Labcorp

Female

≥18y

10 – 34 µg/24h

Q

Quest Diagnostics

All

≥18y

4 – 50 µg/24h

M

Mayo Clinic Laboratories

All · ≥18y

3.5 – 45 µg/24h

L

Labcorp

Male · ≥18y

11 – 84 µg/24h

L

Labcorp

Female · ≥18y

10 – 34 µg/24h

Q

Quest Diagnostics

All · ≥18y

4 – 50 µg/24h

Related biomarkers

More tests in the urine category.

Urine Creatinine

Albumin-to-Creatinine Ratio (ACR)

Urine Specific Gravity

24h Urine Protein

24h Urine Calcium

Sources

Mayo Clinic Laboratories

Quest Diagnostics

Last updated 2026-05-02

This page presents source-specific reference data and sourced explanations. For general wellness information only. This is not medical advice. For diagnosis or treatment of any condition, talk to a qualified clinician.

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