Anion Gap Unit Converter
Convert between mEq/L, mmol/L
Also known as: AG, AGAP, Serum Anion Gap, Other Anions
Convert Anion Gap
What is Anion Gap?
The anion gap is a calculated value that measures the difference between positively charged ions (cations) and negatively charged ions (anions) in your blood.
It is calculated using results from an electrolyte panel, typically by subtracting the sum of chloride and bicarbonate from sodium: Na - (Cl + HCO3). The gap represents unmeasured anions in the blood, primarily albumin and organic acids.
A normal anion gap typically ranges from 3 to 11 mEq/L with modern laboratory methods (ion-selective electrodes), though reference ranges vary between laboratories.
Where Does Anion Gap Come From?
The anion gap is not produced by the body but is calculated from measurements of electrolytes (sodium, chloride, and bicarbonate) in the blood. The gap reflects unmeasured anions, primarily albumin (produced by the liver) and organic acids like lactate.
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