0.5 nmol/L to ng/mL Converter
Convert any lab value from nmol/L to ng/mL (or back) for 16 hormones and vitamins - pick the molecule below and this calculator uses its exact molecular weight. Also written "nM" or "nmol/l" on some lab reports - 0.5 nM and 0.5 nmol/L mean exactly the same thing.
Common nmol/L Values
Same value, converted for every molecule
| Molecule | MW (g/mol) | 0.5 nmol/L in ng/mL |
|---|---|---|
| Vitamin D (25-Hydroxyvitamin D) | 400.64 | 0.20032 ng/mL |
| Testosterone | 288.42 | 0.14421 ng/mL |
| Estradiol (E2) | 272.38 | 0.13619 ng/mL |
| Cortisol | 362.46 | 0.18123 ng/mL |
| Progesterone | 314.47 | 0.157235 ng/mL |
| Vitamin A (Retinol) | 286.45 | 0.143225 ng/mL |
| Vitamin E (Alpha-Tocopherol) | 430.71 | 0.215355 ng/mL |
| Aldosterone | 360.45 | 0.180225 ng/mL |
| Dehydroepiandrosterone (DHEA) | 288.42 | 0.14421 ng/mL |
| DHEA-Sulfate (DHEA-S) | 368.49 | 0.184245 ng/mL |
| Vitamin B12 (Cobalamin) | 1355.4 | 0.6777 ng/mL |
| Folate (Folic Acid) | 441.4 | 0.2207 ng/mL |
| Melatonin | 232.28 | 0.11614 ng/mL |
| Thyroxine (T4) | 776.87 | 0.388435 ng/mL |
| Triiodothyronine (T3) | 651.01 | 0.325505 ng/mL |
| Androstenedione | 286.41 | 0.143205 ng/mL |
Each row uses the same value entered above, converted with that molecule's own molecular weight. Custom molecular weight isn't included here since it has no fixed value of its own.
Here’s a worked example for anyone converting 0.5 nmol/L of Vitamin D into ng/mL by hand, before double-checking it against the calculator above.
First, multiply 0.5 nmol/L by the molecular weight of Vitamin D, 400.64 g/mol: 0.5 × 400.64 = 200.32.
Next, divide that result by 1000 to convert nanomoles to nanograms: 200.32 ÷ 1000 = 0.20032.
In short, 0.5 nmol/L is 0.20032 ng/mL. Try a different number in the calculator above to see it recalculate live.
