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Anion Gap Calculator

Calculate anion gap from sodium, chloride, and bicarbonate values to help interpret acid base patterns. Educational estimate, not a diagnosis.

Anion Gap Calculator





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Last updated: February 25, 2026

Created by: Eon Tools Dev Team

Reviewed by: Dr. Ashish Lamichhane





Dr. Ashish Lamichhane

Dr. Ashish Lamichhane is an MBBS doctor currently serving as an ASBA medical officer and hospital chief, with a background in general medicine and clinical practice. His work brings real world medical perspective to health related calculation tools and everyday decision support utilities. At Eon Tools, he reviews health tools.