How do I convert Lactate (synovial fluid) from mg/dL to mmol/L?

mmol/L = mg/dL × 0.111. In the other direction: mg/dL = mmol/L × 9.008.

Which units are used for Lactate (synovial fluid)?

Common units are mmol/L, mg/dL.

Urine & CSF

Lactate in synovial fluid (septic arthritis)

Also known as: Laktat (Gelenkpunktat)

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

mmol/L mg/dL

1 mmol/L = 9.01 mg/dL

mmol/L	mmol/L = mg/dL × 0.111	mg/dL = mmol/L × 9.008

Lactate (synovial fluid) is reported in mg/dL or mmol/L. The page converts between the units only.

mmol/L × 9.008 = mg/dL (exact factor 9.008).
Fluid results are interpreted together with a blood sample taken at the same time; there is no single normal range.

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Source: PubChem: Lactic Acid · 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 90.08 g/mol.