Bilirubin (mg/dL) to Micromoles per litre Converter

About this calculator

Bilirubin lab results are reported in two different unit conventions depending on the country: the US uses mg/dL, while most of the rest of the world uses the SI unit µmol/L. The conversion factor, 1 mg/dL = 17.1 µmol/L, comes directly from bilirubin's molar mass (about 584.7 g/mol) — dividing 10 (to go from dL to L) by the molar mass and adjusting units gives that 17.1 multiplier.

Clinicians, lab technicians, and nurses reading liver function panels, especially when monitoring neonatal jaundice (where bilirubin trends closely determine treatment decisions like phototherapy thresholds), need to convert between these unit systems constantly when comparing lab results from different countries, hospital systems, or older medical literature reported in the other convention.