Salivary cortisol (late-night) unit converter
Cushing syndrome screening test, collected between 11 pm and midnight
Also known as: Late-night salivary cortisol
Converter
Enter a value in any unit and all other units fill in.
Worked example
50.75 ng/dL (middle of the reference range) = 1.4 nmol/L
Conversion formulas
| nmol/L | nmol/L = ng/dL × 0.02759 | ng/dL = nmol/L × 36.25 |
|---|---|---|
| µg/dL | µg/dL = ng/dL × 0.001 | ng/dL = µg/dL × 1000 |
| µg/L | µg/L = ng/dL × 0.01 | ng/dL = µg/L × 100 |
| ng/L | ng/L = ng/dL × 10 | ng/dL = ng/L × 0.1 |
| pmol/L | pmol/L = ng/dL × 27.59 | ng/dL = pmol/L × 0.03625 |
Good to know
Salivary cortisol (late-night) is reported in ng/dL or nmol/L. The page converts between the units only.
- nmol/L × 36.25 = ng/dL (exact factor 36.25).
- The range shown is a guide from the named source; targets and reference ranges differ between laboratories, methods and indications, so compare with the range on your own report.
Reference range
| Unit | Adults |
|---|---|
| nmol/L | 0 – 2.8 |
| ng/dL | 0 – 101.5 |
| µg/dL | 0 – 0.1015 |
| µg/L | 0 – 1.015 |
| ng/L | 0 – 1015 |
| pmol/L | 0 – 2800 |
Source: Newcastle Hospitals Laboratories: Salivary cortisol · Last reviewed: 2026-10-19
Note from the source: Late night (23:00-00:00) below 2.8 nmol/L (about 100 ng/dL = 0.1 µg/dL) (Newcastle Hospitals Laboratories); assay-specific