FIB-4 Index Calculator

Calculates FIB-4 from age, AST, ALT and platelet count. Includes formula, interpretation, limitations and references.

FIB-4 Index
Clinical Decision Tool

Calculates FIB-4 from age, AST, ALT and platelet count.

Log in to save Save this calculator to your MediCalc account.

Log in to save incomplete calculator progress and return later.

Clinical Decision Support Only

MediCalc calculators are intended to support qualified healthcare professionals and must not replace professional clinical judgement. Do not enter patient-identifiable information into Saved Progress.

Read our Clinical Disclaimer
From MDPDA

Related clinical knowledge

Explore referenced clinical guidance from the Medical & Dental Professional Development Alliance.

Browse MDPDA Clinical Knowledge →
Our professional platforms

Connected clinical knowledge across the network

Explore the connected clinical and professional platforms across our network.

VetCalc Veterinary calculators, references and professional resources DentaCalc Dental calculators, oral health knowledge and professional tools MDPDA Medical & Dental Professional Development Alliance