Biopterin (CSF): convert ng/mL to nmol/L
nmol/L = ng/mL × 4.215
Calculator
Enter a value in any unit and all other units fill in.
Conversion formulas
| ng/mL → nmol/L | nmol/L = ng/mL × 4.215 |
|---|---|
| nmol/L → ng/mL | ng/mL = nmol/L × 0.2372 |
Conversion table
Highlighted: values inside the adult reference range.
| ng/mL | nmol/L |
|---|---|
| 2 | 8.431 |
| 4 | 16.86 |
| 6 | 25.29 |
| 8 | 33.72 |
| 10 | 42.15 |
| 12 | 50.59 |
| 14 | 59.02 |
| 16 | 67.45 |
| 18 | 75.88 |
| 20 | 84.31 |
| 22 | 92.74 |
Reference range
2.4 – 9.5 ng/mL = 10.12 – 40.05 nmol/L
Source: Cerebrospinal fluid neurotransmitters, pterins, folates and amino acids in paediatric-onset epilepsies, Children 2025 (age-related reference ranges of the authors' laboratory, PMC) · Last reviewed: 2026-10-19