Cotinine (Serum) unit converter
Convert cotinine (Serum) between ng/mL and nmol/L. 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 ng/mL = 5.675 nmol/L. Nothing you type here leaves your browser.
The conversion
- 1 ng/mL = 5.675 nmol/LFrom ng/mL to nmol/L: multiply by 5.675. Back again: divide by 5.675.
ng/mL and µg/L give the same number.
Mass and molar units are linked by the molecular weight: 176.21 g/mol (cotinine, C10H12N2O. PubChem lists 176.21.). Source: PubChem, National Library of Medicine.
Common values
From zero to about twice the usual upper limit, plus the usual limits themselves.
| ng/mLsame as µg/L | nmol/L |
|---|---|
| 2 | 11.4 |
| 3 | 17 |
| 4 | 22.7 |
| 5 | 28.4 |
| 6 | 34.1 |
| 8 | 45.4 |
| 10 | 56.8 |
| 12 | 68.1 |
| 14 | 79.5 |
| 16 | 90.8 |
| 18 | 102.2 |
| 20 | 113.5 |
Usual ranges in each unit
What labs print as the reference range, by who was tested. Sources for each range are on the Cotinine (Serum) page.
| Who | ng/mL | nmol/L |
|---|---|---|
| Adults | up to 5 | up to 28.4 |