0.2 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 - 0.2 nM and 0.2 nmol/L mean exactly the same thing.
Common nmol/L Values
Same value, converted for every molecule
| Molecule | MW (g/mol) | 0.2 nmol/L in ng/mL |
|---|---|---|
| Vitamin D (25-Hydroxyvitamin D) | 400.64 | 0.080128 ng/mL |
| Testosterone | 288.42 | 0.057684 ng/mL |
| Estradiol (E2) | 272.38 | 0.054476 ng/mL |
| Cortisol | 362.46 | 0.072492 ng/mL |
| Progesterone | 314.47 | 0.062894 ng/mL |
| Vitamin A (Retinol) | 286.45 | 0.05729 ng/mL |
| Vitamin E (Alpha-Tocopherol) | 430.71 | 0.086142 ng/mL |
| Aldosterone | 360.45 | 0.07209 ng/mL |
| Dehydroepiandrosterone (DHEA) | 288.42 | 0.057684 ng/mL |
| DHEA-Sulfate (DHEA-S) | 368.49 | 0.073698 ng/mL |
| Vitamin B12 (Cobalamin) | 1355.4 | 0.27108 ng/mL |
| Folate (Folic Acid) | 441.4 | 0.08828 ng/mL |
| Melatonin | 232.28 | 0.046456 ng/mL |
| Thyroxine (T4) | 776.87 | 0.155374 ng/mL |
| Triiodothyronine (T3) | 651.01 | 0.130202 ng/mL |
| Androstenedione | 286.41 | 0.057282 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.
Some labs report Vitamin D in nmol/L, others in ng/mL – and the two aren’t the same number. This walks through converting 0.2 nmol/L step by step.
Step 1: Multiply 0.2 nmol/L by the molecular weight of Vitamin D, 400.64 g/mol: 0.2 × 400.64 = 80.128.
Step 2: Divide that result by 1000 to convert nanomoles to nanograms: 80.128 ÷ 1000 = 0.080128.
That’s 0.080128 ng/mL for 0.2 nmol/L. The calculator above updates instantly if you want to try another value.
