Bilirubin (Direct) in Serum

Also known as:

Direct Bilirubin

S-dBIL

dBIL

Direct Bili

Conjugated Bilirubin

Bilirubin (Direct) ranges

Interpret your result

"Normal" lab range for Bilirubin (Direct) is between 0 and 0.3 mg/dL:

0.3

According to Intercoastal Health, Bilirubin (Direct) should be between 0.1 and 0.15 mg/dL:

0.1

0.15

Optimal range

Optimal range for Bilirubin (Direct) appears to be between 0.1 and 0.15 mg/dL:

0.1

0.15

0.3

This isn't medical advice. Consult your healthcare provider.

This page is marked as a work-in-progress.

The optimal range is derived from a limited number of sources and is subject to change.

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About the site author
My personal mission is to extend human lifespan by collectively adding 1 million years to people's lives.
Zsolt Szabo
Software Engineer, Biohacker, and Consultant for Longevity Clinics.

Please send me relevant research and feedback.

Any feedback is welcome at .

I am particularly interested in research on biomarkers associated with all-cause mortality and on defining optimal reference ranges.