Anion Gap Calculator
Calculate the anion gap from serum electrolytes to help diagnose metabolic acidosis and other acid-base disorders.
Important Health Disclaimer
This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.
For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.
Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.
Not a substitute for professional medical advice
Serum Electrolytes
Normal: 136-145 mEq/L
Normal: 98-106 mEq/L
Normal: 22-26 mEq/L
For albumin-corrected AG (Normal: 3.5-5.0 g/dL)
Anion Gap
14.0 mEq/L
High Anion Gap
Interpretation
Metabolic acidosis with increased anion gap (HAGMA)
Causes of Abnormal Anion Gap
High Anion Gap (MUDPILES)
- Methanol
- Uremia
- Diabetic ketoacidosis
- Propylene glycol
- Isoniazid, Iron
- Lactic acidosis
- Ethylene glycol
- Salicylates
Low Anion Gap
- Hypoalbuminemia
- Multiple myeloma (paraproteins)
- Lithium toxicity
- Bromide ingestion
- Laboratory error
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