How do I convert Urea (spot urine) from mg/dL to mmol/L?

mmol/L = mg/dL × 0.1665. In the other direction: mg/dL = mmol/L × 6.006.

Which units are used for Urea (spot urine)?

Common units are mmol/L, mg/dL.

Urine & CSF

Urea in spot urine (fractional urea excretion)

Also known as: Harnstoff (Spontanurin)

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

mmol/L mg/dL

1 mmol/L = 6.01 mg/dL

mmol/L	mmol/L = mg/dL × 0.1665	mg/dL = mmol/L × 6.006

Urea (spot urine) is reported in mg/dL or mmol/L. The page converts between the units only.

mmol/L × 6.006 = mg/dL (exact factor 6.006).
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: Urea · 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 60.06 g/mol.