Calculators › Vitamin B12
Vitamin B12: pg/mL to pmol/L
1 pg/mL = 0.737806 pmol/L
Reference only. These conversions are arithmetic, not medical advice. Reference ranges differ between laboratories, and results should be interpreted by a clinician alongside the lab's own reported units and ranges.
Conversion table
| pg/mL | pmol/L |
|---|---|
| 150 pg/mL | 110.6709 pmol/L |
| 200 pg/mL | 147.5612 pmol/L |
| 300 pg/mL | 221.3418 pmol/L |
| 400 pg/mL | 295.1224 pmol/L |
| 500 pg/mL | 368.903 pmol/L |
| 800 pg/mL | 590.2447 pmol/L |
| 1000 pg/mL | 737.8059 pmol/L |
Going the other way, 1 pmol/L = 1.3554 pg/mL.
Why this conversion needs the substance
pg/mL measures mass; pmol/L measures amount of substance. Converting between them needs the molar mass of the thing being measured — for vitamin b12 that is 1355.37 g/mol. That is why a generic converter can't do it, and why every analyte has a different factor.
Jotal works this out from molar mass rather than a stored factor, so write
vitamin b12 400 pg/mL in pmol/L and it answers 295.1224 pmol/L. Leave the substance out
and it deliberately returns nothing rather than guessing.
Other lab values
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