Child-Pugh Calculator

Your details

Pick the unit your lab report uses. The score is computed on the standard mg/dL cut-offs.
Serum total bilirubin. 1 mg/dL = 17.1 µmol/L.
mg/dL
Pick the unit your lab report uses. 1 g/dL = 10 g/L.
Serum albumin. 1 g/dL = 10 g/L.
g/dL
The original Child-Pugh used PT prolongation; the modern version uses INR. Either works.
International Normalized Ratio of prothrombin time.
Child-Pugh scoreClass A (5-6): well-compensated disease
5points
Child-Pugh classClass A
Est. 1-year survival~100%
Est. 2-year survival~85%
Perioperative mortality (abdominal surgery)~10%
Bilirubin points1
Albumin points1
INR / PT points1
Ascites points1
Encephalopathy points1
5 pts
Class A<6Class B6-9Class C9+

Child-Pugh score 5 of 15: Class A.

  • Class A is 5-6 points, Class B is 7-9, and Class C is 10-15. This patient falls in Class A.
  • Commonly cited survival for Class A is about ~100% at one year and ~85% at two years, though figures vary by study and cause.
  • Estimated perioperative mortality for major abdominal surgery in Class A is roughly ~10%, which is why the score guides surgical risk and transplant assessment.

Next stepConfirm lab values and clinical grading with the treating team before acting on the result.

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