Free interactive tool
Calculate a liver fibrosis screening score from your age and blood report, with guidance on discussing the result.
What you need: Age, AST (SGOT), ALT (SGPT) and platelet count
Free FIB-4 calculator
Enter four values from a recent blood report. Your information stays on your device and is never sent or saved.
This is a screening tool, not a diagnosis. Acute illness and other conditions affecting AST, ALT or platelets can make the score misleading. Confirm the report units and interpret the result with a clinician.