For healthcare professionals
Anion Gap Calculator
Serum anion gap, with albumin correction when albumin is entered.
For monovalent electrolytes (sodium, potassium, chloride, bicarbonate) mmol/L and mEq/L are identical.
Your result will appear here
Enter your measurements, then press Calculate.
Valence 1
mEq/L = mmol/L × valence (1)
Milliequivalents equal millimoles multiplied by the ion's charge. Sodium, potassium, chloride and bicarbonate have a charge of 1, so the numbers are the same.
Serum anion gap, with albumin correction when albumin is entered.
Sodium corrected for hyperglycaemia using the Katz (1.6) and Hillier (2.4) factors.