Anion Gap Calculator

AG, Delta-Delta, Corrected AG, and Osmolar Gap

Sodium (mEq/L)

mEq/L

Chloride (mEq/L)

mEq/L

Bicarbonate (mEq/L)

mEq/L

Albumin (g/dL)

g/dL

For albumin-corrected AG (important in critically ill patients)

Glucose (mg/dL)

mg/dL

BUN (mg/dL)

mg/dL

Ethanol (mg/dL) — default 0

mg/dL

Measured Serum Osmolality (mOsm/kg) — optional

mOsm/kg

Anion Gap —

Albumin-Corrected AG —

Delta-Delta Ratio —

Calculated Osmolality —

Osmolar Gap —

Enter Na, Cl, and HCO₃ to calculate.