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Vitamin E (natural, RRR-α-tocopherol): convert IU to mg

mg = IU × 0.67

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Enter a value in any unit and all other units fill in.

Dose conversions apply only to the substance and form named here. Do not use them to dose medicines; follow the label, the package leaflet and your prescriber.

Conversion formulas

IU → mgmg = IU × 0.67
mg → IUIU = mg × 1.493

Conversion table

IUmg
10067
250167.5
500335
1000670
20001340
50003350
10 0006700

Source: EFSA (2024) Tolerable upper intake level for vitamin E, Table 3 (PMC) · Last reviewed: 2026-10-14

Frequently asked questions

How do I convert Vitamin E (natural, RRR-α-tocopherol) from IU to mg?

mg = IU × 0.67. For example, 1000 IU equals 670 mg.

How many mg are 1000 IU?

1000 IU equal 670 mg (Vitamin E (natural, RRR-α-tocopherol)).

How do I convert Vitamin E (natural, RRR-α-tocopherol) from mg back to IU?

IU = mg × 1.493.

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