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Open Full CalculatorFrequently Asked Questions
What is a normal anion gap?
Normal anion gap is 8–12 mEq/L. An elevated gap suggests causes like ketoacidosis, lactic acidosis, or toxins.
Calculate the anion gap to evaluate metabolic acidosis. Free anion gap calculator for medical students and clinicians.
For the interactive calculator, open the full CalcHealth page.
Open Full CalculatorNormal anion gap is 8–12 mEq/L. An elevated gap suggests causes like ketoacidosis, lactic acidosis, or toxins.