How do I convert Cysteine (plasma) from mg/dL to µmol/L?

µmol/L = mg/dL × 82.54. In the other direction: mg/dL = µmol/L × 0.01212.

Which units are used for Cysteine (plasma)?

Common units are mg/dL, µmol/L.

Diabetes & metabolism

Cysteine in plasma (amino acid profile in inborn errors of metabolism and nutritional status)

Also known as: Cystein (Plasma)

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

mg/dL µmol/L

100 µmol/L = 1.21 mg/dL

µmol/L	µmol/L = mg/dL × 82.54	mg/dL = µmol/L × 0.01212

Cysteine (plasma) is reported in mg/dL or µmol/L. The page converts between the units only.

µmol/L × 0.01212 = mg/dL (exact factor 0.01212).
No established reference range is listed here; compare your result only with the range printed on your own report.

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Source: PubChem: L-(+)-Cysteine · Last reviewed: 2026-10-19

Note from the source: No established reference range; the page converts units only. Mass-to-amount conversion uses a molar mass of 121.16 g/mol.