How do I convert Uroporphyrin (24-h urine) from µg/24 h to nmol/24 h?

nmol/24 h = µg/24 h × 1.204. In the other direction: µg/24 h = nmol/24 h × 0.8307.

Which units are used for Uroporphyrin (24-h urine)?

Common units are µg/24 h, nmol/24 h.

Urine & CSF

Uroporphyrin excreted in 24-hour urine (porphyria cutanea tarda)

Also known as: Uroporphyrin (24-h-Urin)

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

µg/24 h nmol/24 h

10 nmol/24 h = 8.31 µg/24 h

nmol/24 h	nmol/24 h = µg/24 h × 1.204	µg/24 h = nmol/24 h × 0.8307

Uroporphyrin (24-h urine) is reported in µg/24 h or nmol/24 h. The page converts between the units only.

nmol/24 h × 0.8307 = µg/24 h (exact factor 0.8307).
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: Uroporphyrin I · 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 830.7 g/mol.