5-HIAA (CSF): convert ng/mL to nmol/L
nmol/L = ng/mL × 5.231
Calculator
Enter a value in any unit and all other units fill in.
Conversion formulas
| ng/mL → nmol/L | nmol/L = ng/mL × 5.231 |
|---|---|
| nmol/L → ng/mL | ng/mL = nmol/L × 0.1912 |
Conversion table
Highlighted: values inside the adult reference range.
| ng/mL | nmol/L |
|---|---|
| 5 | 26.16 |
| 10 | 52.31 |
| 15 | 78.47 |
| 20 | 104.6 |
| 25 | 130.8 |
| 30 | 156.9 |
| 35 | 183.1 |
| 40 | 209.2 |
| 45 | 235.4 |
| 50 | 261.6 |
| 55 | 287.7 |
| 60 | 313.9 |
| 65 | 340 |
| 70 | 366.2 |
| 75 | 392.3 |
Reference range
10.51 – 31.16 ng/mL = 55 – 163 nmol/L
Source: Burlina et al. (2017): The utility of CSF for the diagnosis of primary and secondary monoamine neurotransmitter deficiencies, EJIFCC 28:64-75 (PMC) · Last reviewed: 2026-10-19