APRI Calculator

Free calculate AST to Platelet Ratio Index (APRI) for liver fibrosis assessment. Get instant, accurate results with our easy-to-use calculator.

Lab Values

Results

Enter lab values to calculate APRI

About APRI

  • • APRI = ((AST / AST_ULN) / Platelet) × 100
  • • <0.5: Unlikely significant fibrosis
  • • 0.5-1.5: Indeterminate
  • • >1.5: Likely significant fibrosis