Bilirubin Unit Converter
Convert bilirubin values between mg/dL and µmol/L and check them against normal reference ranges for adults and newborns.
Converter
mg/dL
µmol/L
Reference Ranges — Total Bilirubin
Adult
Newborn (Total Bilirubin)
Normal (<24 h)
<6 mg/dL / <103 µmol/L
Phototherapy threshold (term, 48–72 h)
15 mg/dL / 257 µmol/L
Exchange transfusion risk
>25 mg/dL / >428 µmol/L
Formula:
mg/dL × 17.1 = µmol/L · µmol/L ÷ 17.1 = mg/dL
Summary
Convert bilirubin values between mg/dL and µmol/L and check them against normal reference ranges for adults and newborns.
How it works
- Enter your bilirubin value in either mg/dL or µmol/L.
- The converter uses the factor 17.1 (1 mg/dL = 17.1 µmol/L) to compute the result.
- The converted value appears immediately in the opposite unit field.
- A reference panel shows whether your value falls within normal adult or newborn ranges.
- Switch between Total, Direct (conjugated), and Indirect (unconjugated) bilirubin types to see the corresponding reference ranges.
Use cases
- Interpret lab reports that use different unit systems.
- Cross-reference bilirubin levels when traveling or consulting overseas physicians.
- Assess neonatal jaundice values against standard phototherapy thresholds.
- Convert values for medical research or patient record entry.
- Compare direct vs. indirect bilirubin fractions in clinical notes.
- Quickly sanity-check manual unit conversions during patient care.
Frequently Asked Questions
Last updated: 2026-07-22 ·
Reviewed by Nham Vu