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Vitamin A (retinol): convert µg RAE to IU

IU = µg RAE × 3.333

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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

µg RAE → IUIU = µg RAE × 3.333
IU → µg RAEµg RAE = IU × 0.3

Conversion table

µg RAEIU
13.333
2.58.333
516.67
1033.33
2066.67
50166.7
100333.3

Source: FAO: Food composition table for use in Africa, Appendix 3 (vitamin A conversion factors) · Last reviewed: 2026-10-14

Frequently asked questions

How do I convert Vitamin A (retinol) from µg RAE to IU?

IU = µg RAE × 3.333. For example, 10 µg RAE equals 33.3 IU.

How many IU are 10 µg RAE?

10 µg RAE equal 33.3 IU (Vitamin A (retinol)).

How do I convert Vitamin A (retinol) from IU back to µg RAE?

µg RAE = IU × 0.3.

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