Late-Night Salivary Cortisol Threshold Calculator

Screen for Cushing's syndrome using late-night salivary cortisol. Two elevated samples (>1.5 to 2.0 nmol/L) required for positive screen.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Screen for Cushing's syndrome using late-night salivary cortisol. Two elevated samples (>1.5 to 2.0 nmol/L) required for positive screen

Each component has a specific meaning:

  • Late-night salivary cortisol — The late-night salivary cortisol recorded for the scenario being assessed.

Note: Interpret the late-night cortisol result against the thresholds and context described above.

How to Use

Enter the late-night salivary cortisol for the scenario you are assessing. Screen for Cushing's syndrome using late-night salivary cortisol. Two elevated samples (>1.5 to 2.0 nmol/L) required for positive screen. Use the late-night cortisol result to inform your calculation.

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Frequently Asked Questions