Converting Between IU and Mg
This chart can help convert dosages cited in studies between international units (IU) and milligrams (mg). For example, 400 IU of synthetic dl-alpha-tocopherol is converted to 363 mg dl-alpha-tocopherol by dividing 400 IU by 1.10.
Synthetic Vitamin E and Esters |
IU to mg |
mg to IU |
d-alpha-Tocopherol acetate |
1.00 |
1.00 |
d-alpha-Tocopherol succinate |
0.89 |
1.12 |
d-alpha-Tocopherol |
1.10 |
0.91 |
Natural Vitamin E and Esters |
IU to mg |
mg to IU |
d-alpha-Tocopherol acetate |
1.36 |
0.74 |
d-alpha-Tocopherol succinate |
1.21 |
0.83 |
d-alpha-Tocopherol |
1.49 |
0.67 |
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