Vitamin A (retinol) unit converter
Intake dose of preformed vitamin A (retinol): international units (IU) to micrograms RAE. 1 IU = 0.3 µg RAE.
Also known as: Retinyl palmitate, Retinol activity equivalents, RAE, IE, IU, Vitamin A Dosis
Converter
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.
Worked example
1000 IU = 300 µg RAE
Conversion formulas
| mg RAE | mg RAE = µg RAE × 0.001 | µg RAE = mg RAE × 1000 |
|---|---|---|
| IU | IU = µg RAE × 3.333 | µg RAE = IU × 0.3 |
Reference range
Doses have no reference range.
Source: FAO: Food composition table for use in Africa, Appendix 3 (vitamin A conversion factors) · Last reviewed: 2026-10-14
Note from the source: FAO: 1 IU = 0.3 µg retinol; 1 µg RAE = 1 µg retinol (21 CFR 101.9). Valid for retinol only, not for beta-carotene.