140 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 - 140 nM and 140 nmol/L mean exactly the same thing.
Common nmol/L Values
Same value, converted for every molecule
| Molecule | MW (g/mol) | 140 nmol/L in ng/mL |
|---|---|---|
| Vitamin D (25-Hydroxyvitamin D) | 400.64 | 56.0896 ng/mL |
| Testosterone | 288.42 | 40.3788 ng/mL |
| Estradiol (E2) | 272.38 | 38.1332 ng/mL |
| Cortisol | 362.46 | 50.7444 ng/mL |
| Progesterone | 314.47 | 44.0258 ng/mL |
| Vitamin A (Retinol) | 286.45 | 40.103 ng/mL |
| Vitamin E (Alpha-Tocopherol) | 430.71 | 60.2994 ng/mL |
| Aldosterone | 360.45 | 50.463 ng/mL |
| Dehydroepiandrosterone (DHEA) | 288.42 | 40.3788 ng/mL |
| DHEA-Sulfate (DHEA-S) | 368.49 | 51.5886 ng/mL |
| Vitamin B12 (Cobalamin) | 1355.4 | 189.756 ng/mL |
| Folate (Folic Acid) | 441.4 | 61.796 ng/mL |
| Melatonin | 232.28 | 32.5192 ng/mL |
| Thyroxine (T4) | 776.87 | 108.7618 ng/mL |
| Triiodothyronine (T3) | 651.01 | 91.1414 ng/mL |
| Androstenedione | 286.41 | 40.0974 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 140 nmol/L of Vitamin D into ng/mL by hand, before double-checking it against the calculator above.
First, multiply 140 nmol/L by the molecular weight of Vitamin D, 400.64 g/mol: 140 × 400.64 = 56089.6.
Next, divide that result by 1000 to convert nanomoles to nanograms: 56089.6 ÷ 1000 = 56.0896.
So 140 nmol/L works out to 56.0896 ng/mL. Use the calculator above if you need to convert a different value.
