22 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 - 22 nM and 22 nmol/L mean exactly the same thing.
Common nmol/L Values
Same value, converted for every molecule
| Molecule | MW (g/mol) | 22 nmol/L in ng/mL |
|---|---|---|
| Vitamin D (25-Hydroxyvitamin D) | 400.64 | 8.81408 ng/mL |
| Testosterone | 288.42 | 6.34524 ng/mL |
| Estradiol (E2) | 272.38 | 5.99236 ng/mL |
| Cortisol | 362.46 | 7.97412 ng/mL |
| Progesterone | 314.47 | 6.91834 ng/mL |
| Vitamin A (Retinol) | 286.45 | 6.3019 ng/mL |
| Vitamin E (Alpha-Tocopherol) | 430.71 | 9.47562 ng/mL |
| Aldosterone | 360.45 | 7.9299 ng/mL |
| Dehydroepiandrosterone (DHEA) | 288.42 | 6.34524 ng/mL |
| DHEA-Sulfate (DHEA-S) | 368.49 | 8.10678 ng/mL |
| Vitamin B12 (Cobalamin) | 1355.4 | 29.8188 ng/mL |
| Folate (Folic Acid) | 441.4 | 9.7108 ng/mL |
| Melatonin | 232.28 | 5.11016 ng/mL |
| Thyroxine (T4) | 776.87 | 17.09114 ng/mL |
| Triiodothyronine (T3) | 651.01 | 14.32222 ng/mL |
| Androstenedione | 286.41 | 6.30102 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 22 nmol/L of Vitamin D into ng/mL by hand, before double-checking it against the calculator above.
First, multiply 22 nmol/L by the molecular weight of Vitamin D, 400.64 g/mol: 22 × 400.64 = 8814.08.
Next, divide that result by 1000 to convert nanomoles to nanograms: 8814.08 ÷ 1000 = 8.81408.
In short, 22 nmol/L is 8.81408 ng/mL. Try a different number in the calculator above to see it recalculate live.
