Browse Medical Laboratory Calculators
Vitamin E Unit Converter
Vitamin E (Alpha-Tocopherol) is a fat-soluble antioxidant essential for protecting cell membranes from oxidative stress. It is stored in the liver and adipose tissue.
Deficiency is rare but can occur in disorders of fat malabsorption (e.g., Cystic Fibrosis, Cholestasis). This converter facilitates switching between standard mass units (mg/L, μg/mL) and international SI molar units (μmol/L).
Mass Units
StandardMilligrams per liter (Numerically equivalent to μg/mL).
SI / Molar Units
Micromoles per liter (International Standard).
Clinical Context
Reference Ranges (Adults):
• Sufficiency: 5.5 – 17 mg/L (12.8 – 39.5 μmol/L).
• Deficiency: < 4.0 mg/L (< 9.3 μmol/L).
Toxicity: High doses (>40 mg/L) can interfere with blood clotting (antagonism of Vitamin K) and platelet function, increasing the risk of bleeding.
Conversion Logic:
Molecular Weight of Alpha-Tocopherol: ~430.71 g/mol.
1 mg/L ≈ 2.32 μmol/L.
1 μmol/L ≈ 0.431 mg/L.
Clinical References
How to Use This Converter
Follow these steps to normalize Vitamin E values.
Enter Values
Input your laboratory result into the corresponding unit field (e.g., mg/L).
Automatic Conversion
The calculator converts between mass units and the SI molar unit using the molecular weight of 430.71 g/mol.
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
Yes. 1 milligram per liter is numerically identical to 1 microgram per milliliter.
This calculator is based on Alpha-Tocopherol, the most biologically active form typically measured in clinical assays.