Vitamin D (dose): convert µg to IU
IU = µg × 40
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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 → IU | IU = µg × 40 |
|---|---|
| IU → µg | µg = IU × 0.025 |
Conversion table
| µg | IU |
|---|---|
| 1 | 40 |
| 2.5 | 100 |
| 5 | 200 |
| 10 | 400 |
| 20 | 800 |
| 50 | 2000 |
| 100 | 4000 |
Source: DGE (German Nutrition Society): Reference values for vitamin D · Last reviewed: 2026-10-14