Cotinine (Urine) unit converter
Convert cotinine (Urine) 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 |
|---|---|
| 10 | 57 |
| 15 | 85 |
| 20 | 114 |
| 30 | 170 |
| 40 | 227 |
| 50 | 284 |
| 60 | 341 |
| 70 | 397 |
| 80 | 454 |
| 90 | 511 |
| 100 | 568 |
Usual ranges in each unit
What labs print as the reference range, by who was tested. Sources for each range are on the Cotinine (Urine) page.
| Who | ng/mL | nmol/L |
|---|---|---|
| Adults | up to 15 | up to 85 |