Anion Gap Calculator
Serum anion gap, corrected for albumin.
Your result
A normal gap is about 8–12 mmol/L. A high gap points to causes such as ketoacidosis, lactic acidosis or kidney failure.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the Anion Gap Calculator do?
Serum anion gap, corrected for albumin. 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: metabolic acidosis; what is anion gap; blood gas interpretation.