Urine & CSF

5-HIAA (24-h urine): convert µmol/24 h to mg/24 h

mg/24 h = µmol/24 h × 0.1912

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µmol/24 h mg/24 h

µmol/24 h → mg/24 h	mg/24 h = µmol/24 h × 0.1912
mg/24 h → µmol/24 h	µmol/24 h = mg/24 h × 5.231

Highlighted: values inside the adult reference range.

0 – 77.94 µmol/24 h = 0 – 14.9 mg/24 h

Frequently asked questions

How do I convert 5-HIAA (24-h urine) from µmol/24 h to mg/24 h?

mg/24 h = µmol/24 h × 0.1912. For example, 40 µmol/24 h equals 7.65 mg/24 h.

How many mg/24 h are 40 µmol/24 h?

40 µmol/24 h equal 7.65 mg/24 h (5-HIAA (24-h urine)).

How do I convert 5-HIAA (24-h urine) from mg/24 h back to µmol/24 h?

µmol/24 h = mg/24 h × 5.231.