De Ritis Ratio (AST/ALT) Calculator
Compare AST and ALT liver enzymes.
Your result
A ratio below 1 is common in fatty liver disease and viral hepatitis. A ratio above 2 is often seen in alcohol-related liver injury. Interpret with imaging and other tests.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
Search by intent
Find this tool when you want to:
Learn more
Kidney Function and eGFR
Understand eGFR, creatinine and when kidney disease is diagnosed.
Lifestyle & PreventionElectrolytes and Common Lab Tests Explained
Sodium, calcium and anion gap in plain language.
Lifestyle & PreventionFever in Adults and Children: When to Worry
Fever is a symptom, not a disease. Know the red flags.
Frequently asked questions
What does the De Ritis Ratio (AST/ALT) Calculator do?
Compare AST and ALT liver enzymes. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: ast alt ratio; de ritis ratio meaning; liver enzyme ratio.