AST ALT Ratio Calculator

AST/ALT Ratio:

This AST ALT ratio calculator helps you calculate the ALT to AST ratio and helps you determine whether it is in the normal range, too high, or too low.

Enter your AST and ALT to calculate the ratio.

If you don’t know, AST stands for aspartate aminotransferase, and ALT stands for Alanine transaminase.

The ALT and AST ratio is helpful in fatty live cases.

  • The normal ratio of AST to ALT should be 1.
  • If the AST: ALT ratio exceeds 1, the person has alcoholic liver disease.
  • If the AST: ALT ratio is 1, it indicates NAFLD/NASH, where the liver accumulates excessive fat deposits.
AST ALT Ratio Calculator

You might be interested in finding arterial pressure or coma severity.


  • Nyblom, H., Björnsson, E., Simrén, M., Aldenborg, F., Almer, S., & Olsson, R. (2006). The AST/ALT ratio as an indicator of cirrhosis in patients with PBC. Liver International, 26(7), 840-845.
  • Giannini, E., Botta, F., Fasoli, A., Ceppa, P., Risso, D., Lantieri, P. B., … & Testa, R. (1999). Progressive liver functional impairment is associated with an increase in AST/ALT ratio. Digestive diseases and sciences, 44, 1249-1253.
  • Hall, P., & Cash, J. (2012). What is the real function of the liver ‘function’tests?. The Ulster medical journal81(1), 30.
  • Michelotti, G. A., Machado, M. V., & Diehl, A. M. (2013). NAFLD, NASH and liver cancer. Nature reviews Gastroenterology & hepatology10(11), 656-665.

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