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Anion Gap Calculator

Calculates the anion gap from serum sodium, chloride, and bicarbonate to help identify the cause of metabolic acidosis. Clinicians use it whenever a patient presents with unexplained acidosis or altered mental status.

Sodium (mEq/L)

Chloride (mEq/L)

Bicarbonate (mEq/L)

Fill in the required fields to see your result.

Medicine

BMI Calculator

Instantly compute your Body Mass Index from weight and height to screen which WHO weight category you fall in. Returns a single kg/m² number classified as underweight, normal, overweight, or obese.

Weight (kg)

Height (cm)

Fill in the required fields to see your result.

Key differences

	Anion Gap Calculator	BMI Calculator
Category	Medicine	Medicine
Inputs required	3	2
Result	Anion Gap (mEq/L)	Your BMI
What it does	Calculates the anion gap from serum sodium, chloride, and bicarbonate to help identify the cause of metabolic acidosis. Clinicians use it whenever a patient presents with unexplained acidosis or altered mental status.	Instantly compute your Body Mass Index from weight and height to screen which WHO weight category you fall in. Returns a single kg/m² number classified as underweight, normal, overweight, or obese.