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Iron & vitamins

Retinol: convert µmol/L to µg/dL

µg/dL = µmol/L × 28.65

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

Conversion formulas

µmol/L → µg/dLµg/dL = µmol/L × 28.65
µg/dL → µmol/Lµmol/L = µg/dL × 0.0349

Conversion table

Highlighted: values inside the adult reference range.

µmol/Lµg/dL
128.65
257.31
385.96
4114.6
5143.3
6171.9
7200.6
8229.2
9257.9
10286.5

Reference range

1.1 – 4.2 µmol/L = 31.52 – 120.3 µg/dL

Source: MedlinePlus (NLM): Vitamin A blood test · Last reviewed: 2026-10-14

Frequently asked questions

How do I convert Retinol from µmol/L to µg/dL?

µg/dL = µmol/L × 28.65. For example, 3 µmol/L equals 86 µg/dL.

How many µg/dL are 3 µmol/L?

3 µmol/L equal 86 µg/dL (Retinol).

How do I convert Retinol from µg/dL back to µmol/L?

µmol/L = µg/dL × 0.0349.

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