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Calcimator

Electrolyte Panel Calculator

Calculate anion gap, BUN/creatinine ratio, and serum osmolality from a basic metabolic panel (BMP) for electrolyte assessment.

Inputs

mEq/L
mEq/L
mEq/L
mEq/L
mg/dL
mg/dL
mg/dL

Results

Anion Gap

14 mEq/L (normal 8-12)

BUN/Creatinine Ratio

15 (normal 10-20)

Calculated Osmolality290.9 mOsm/kg (normal 275-295)
Osmolal Gap0 mOsm/kg (compare to measured)
How to Use This Calculator
  1. Enter serum sodium (mEq/L), potassium (mEq/L), chloride (mEq/L), and bicarbonate (mEq/L).
  2. Review the calculated anion gap: AG = Na - (Cl + HCO3); normal = 8-12 mEq/L.
  3. If AG is elevated, note the delta gap and possible corrected bicarbonate.
  4. Check each value against the reference range for critical value alerts.
  5. Correlate electrolyte abnormalities with patient medications, hydration status, and clinical picture.
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