Liver & pancreas

Direct bilirubin unit converter

Conjugated bilirubin (liver and bile ducts)

Also known as: Conjugated bilirubin, DBIL, D. Bili, Konjugiertes Bilirubin, Bilirubine directe, Bilirubine conjuguée

Converter

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

mg/dL µmol/L mg/L µg/dL µg/L nmol/L

Worked example

2.55 µmol/L (middle of the reference range) = 0.149 mg/dL

Conversion formulas

mg/dL	mg/dL = µmol/L × 0.05848	µmol/L = mg/dL × 17.1
mg/L	mg/L = µmol/L × 0.5847	µmol/L = mg/L × 1.71
µg/dL	µg/dL = µmol/L × 58.47	µmol/L = µg/dL × 0.0171
µg/L	µg/L = µmol/L × 584.7	µmol/L = µg/L × 0.00171
nmol/L	nmol/L = µmol/L × 1000	µmol/L = nmol/L × 0.001

Reference range

Unit	Adults
mg/dL	0 – 0.2982
µmol/L	0 – 5.1
mg/L	0 – 2.982
µg/dL	0 – 298.2
µg/L	0 – 2982
nmol/L	0 – 5100

Source: MedlinePlus (NLM): Bilirubin blood test · Last reviewed: 2026-10-14

Note from the source: Direct (conjugated) bilirubin below 0.3 mg/dL (5.1 µmol/L) (MedlinePlus)

Frequently asked questions

How do I convert Direct bilirubin from µmol/L to mg/dL?

mg/dL = µmol/L × 0.05848. In the other direction: µmol/L = mg/dL × 17.1.

What is the reference range of Direct bilirubin?

For adults the range is 0 – 5.1 µmol/L (MedlinePlus (NLM): Bilirubin blood test). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Direct bilirubin?

Common units are mg/dL, µmol/L, mg/L, µg/dL, µg/L, nmol/L.