Gastroenterology · Hepatology

Serum-Ascites Albumin Gradient (SAAG) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Serum albumin (g/dL)

g/dL

Allowed range: 1–6 g/dL

Ascites albumin (g/dL)

g/dL

Allowed range: 0–4 g/dL

Result

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Clinical inputs

Serum albumin (g/dL)Accepted range: 1 to 6
Ascites albumin (g/dL)Accepted range: 0 to 4

Primary source

Runyon BA et al. The serum-ascites albumin gradient is superior to the exudate-transudate concept. Ann Intern Med. DOI: 10.7326/0003-4819-117-3-215. PMID: 1301361. Scope: SAAG (g/dL) = serum albumin minus ascitic fluid albumin; ≥1.1 suggests portal hypertension. (1992)

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