37 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 - 37 nM and 37 nmol/L mean exactly the same thing.
Common nmol/L Values
Same value, converted for every molecule
| Molecule | MW (g/mol) | 37 nmol/L in ng/mL |
|---|---|---|
| Vitamin D (25-Hydroxyvitamin D) | 400.64 | 14.82368 ng/mL |
| Testosterone | 288.42 | 10.67154 ng/mL |
| Estradiol (E2) | 272.38 | 10.07806 ng/mL |
| Cortisol | 362.46 | 13.41102 ng/mL |
| Progesterone | 314.47 | 11.63539 ng/mL |
| Vitamin A (Retinol) | 286.45 | 10.59865 ng/mL |
| Vitamin E (Alpha-Tocopherol) | 430.71 | 15.93627 ng/mL |
| Aldosterone | 360.45 | 13.33665 ng/mL |
| Dehydroepiandrosterone (DHEA) | 288.42 | 10.67154 ng/mL |
| DHEA-Sulfate (DHEA-S) | 368.49 | 13.63413 ng/mL |
| Vitamin B12 (Cobalamin) | 1355.4 | 50.1498 ng/mL |
| Folate (Folic Acid) | 441.4 | 16.3318 ng/mL |
| Melatonin | 232.28 | 8.59436 ng/mL |
| Thyroxine (T4) | 776.87 | 28.74419 ng/mL |
| Triiodothyronine (T3) | 651.01 | 24.08737 ng/mL |
| Androstenedione | 286.41 | 10.59717 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.
Turning 37 nmol/L into ng/mL takes just two steps once you have the molecular weight of Vitamin D on hand. Here’s the full breakdown.
1) Multiply 37 nmol/L by the molecular weight of Vitamin D, 400.64 g/mol: 37 × 400.64 = 14823.68.
2) Divide that result by 1000 to convert nanomoles to nanograms: 14823.68 ÷ 1000 = 14.82368.
In short, 37 nmol/L is 14.82368 ng/mL. Try a different number in the calculator above to see it recalculate live.
