Vitamin D (25-OH): convert nmol/L to ng/mL
ng/mL = nmol/L × 0.4006
Calculator
Enter a value in any unit and all other units fill in.
Conversion formulas
| nmol/L → ng/mL | ng/mL = nmol/L × 0.4006 |
|---|---|
| ng/mL → nmol/L | nmol/L = ng/mL × 2.496 |
Conversion table
Highlighted: values inside the adult reference range.
| nmol/L | ng/mL |
|---|---|
| 50 | 20.03 |
| 100 | 40.06 |
| 150 | 60.1 |
| 200 | 80.13 |
| 250 | 100.2 |
| 300 | 120.2 |
| 350 | 140.2 |
| 400 | 160.3 |
| 450 | 180.3 |
| 500 | 200.3 |
Reference range
75 – 200 nmol/L = 30.05 – 80.13 ng/mL
Source: MedlinePlus (NLM): Vitamin D test · Last reviewed: 2026-10-14