Health

Anion Gap Calculator

Identify anion gap metabolic acidosis from basic metabolic panel.

Na⁺ (mEq/L)

Cl⁻ (mEq/L)

HCO₃⁻ (mEq/L)

Albumin (g/dL, optional)

Anion Gap—

Corrected AG (for albumin)—

Interpretation—

AG = Na⁺ − (Cl⁻ + HCO₃⁻)
Corrected AG = AG + 2.5 × (4.0 − Albumin)
Normal: 8-12 mEq/L | Elevated: >12 (AGMA)