Late-night salivary cortisol unit converter
Convert Late-night salivary cortisol between µg/dL, nmol/L, ng/mL and ng/dL. Type in either box. The factors come from our catalog and are checked by code.
AI-verified against cited sources. Awaiting expert reviewLast reviewed 2026-10-03
1 µg/dL = 27.5893 nmol/L. Nothing you type here leaves your browser.
The conversion
- 1 µg/dL = 27.59 nmol/LFrom µg/dL to nmol/L: multiply by 27.59. Back again: divide by 27.59.
- 1 µg/dL = 10 ng/mLFrom µg/dL to ng/mL: multiply by 10. Back again: divide by 10.
- 1 µg/dL = 1,000 ng/dLFrom µg/dL to ng/dL: multiply by 1,000. Back again: divide by 1,000.
Mass and molar units are linked by the molecular weight: 362.46 g/mol (Cortisol (hydrocortisone), C21H30O5. PubChem lists 362.5 (rounded). Quest, Labcorp, ARUP and Mayo conversion tables use the same basis (about x27.6 from µg/dL to nmol/L).). Source: PubChem (NIH).
Common values
From zero to about twice the usual upper limit, plus the usual limits themselves.
| µg/dL | nmol/L | ng/mL | ng/dL |
|---|---|---|---|
| 0.02 | 0.6 | 0.2 | 20 |
| 0.04 | 1.1 | 0.4 | 40 |
| 0.06 | 1.7 | 0.6 | 60 |
| 0.08 | 2.2 | 0.8 | 80 |
| 0.09 | 2.5 | 0.9 | 90 |
| 0.1 | 2.8 | 1 | 100 |
| 0.12 | 3.3 | 1.2 | 120 |
| 0.14 | 3.9 | 1.4 | 140 |
| 0.16 | 4.4 | 1.6 | 160 |
| 0.18 | 5 | 1.8 | 180 |
Usual ranges in each unit
What labs print as the reference range, by who was tested. Sources for each range are on the Late-night salivary cortisol page.
| Who | µg/dL | nmol/L | ng/mL | ng/dL |
|---|---|---|---|---|
| Adults | up to 0.09 | up to 2.5 | up to 0.9 | up to 90 |