Total Bilirubin Unit Converter

In short Total Bilirubin is reported in mg/dL in some countries and µmol/L in others, and the two are related by a fixed factor: 1 mg/dL = 17.1036 µmol/L, so to go the other way you divide by 0.0584672. 1.0 mg/dL is 17 µmol/L; 2.0 mg/dL is 34 µmol/L; 3.0 mg/dL is 51 µmol/L. The factor is not arbitrary — it comes from the molar mass, because bilirubin has a molar mass of 584.67 g/mol, and that is why every analyte has its own factor rather than one shared conversion. The same factor applies to total, direct and indirect bilirubin, since all three measure the same pigment. Newborn jaundice charts are the place this conversion bites hardest: the widely used treatment thresholds are published in mg/dL in the United States and in µmol/L in the UK, so a parent comparing the two sets of guidance is comparing numbers seventeen times apart. This converts units. It does not interpret results, does not compare your value against a reference interval, and is not a substitute for the clinician who ordered the test — reference intervals differ between laboratories, methods and populations.