Prolactin: convert ng/mL to mIU/L
mIU/L = ng/mL × 21.2
Calculator
Enter a value in any unit and all other units fill in.
Conversion formulas
| ng/mL → mIU/L | mIU/L = ng/mL × 21.2 |
|---|---|
| mIU/L → ng/mL | ng/mL = mIU/L × 0.04717 |
Conversion table
Highlighted: values inside the adult reference range.
| ng/mL | mIU/L |
|---|---|
| 5 | 106 |
| 10 | 212 |
| 15 | 318 |
| 20 | 424 |
| 25 | 530 |
| 30 | 636 |
| 35 | 742 |
| 40 | 848 |
| 45 | 954 |
| 50 | 1060 |
| 55 | 1166 |
| 60 | 1272 |
Reference range
0 – 25 ng/mL = 0 – 530 mIU/L
Source: MedlinePlus (NLM): Prolactin blood test · Last reviewed: 2026-10-14