Anion Gap Calculator (+ Albumin Correction)
AG with the albumin correction that catches the gaps hypoalbuminaemia hides.
Albumin *is* most of the normal gap — every 1 g/dL it falls hides 2.5 points, so an ICU patient with albumin 2.0 and 'normal AG 11' really has a corrected 16. The classic high-gap causes live in the MUDPILES/GOLD MARK mnemonics; a raised corrected gap with acidosis demands the delta-gap and ketone/lactate/tox workup.
Formula
Reference aid for healthcare professionals only. Every result must be independently verified before clinical use. Never use this tool for self-medication or to replace clinical judgement.
AG with the albumin correction that catches the gaps hypoalbuminaemia hides. The Anion Gap Calculator (+ Albumin Correction) is a free, private anion gap tool — every result computes instantly in your browser with no sign-up and no data upload.
About Anion Gap Calculator (+ Albumin Correction)
Albumin *is* most of the normal gap — every 1 g/dL it falls hides 2.5 points, so an ICU patient with albumin 2.0 and 'normal AG 11' really has a corrected 16. It applies AG = Na − (Cl + HCO₃); corrected = AG + 2.5 × (4 − albumin). Use the Anion Gap Calculator (+ Albumin Correction) to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Anion Gap Calculator (+ Albumin Correction)
- 1Enter your details in the Anion Gap Calculator (+ Albumin Correction) input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Anion Gap Calculator (+ Albumin Correction)?
- ✓Instant anion gap result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Figge J et al., Crit Care Med 1998 — albumin correction)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Anion Gap Calculator (+ Albumin Correction) work?+
Albumin *is* most of the normal gap — every 1 g/dL it falls hides 2.5 points, so an ICU patient with albumin 2.0 and 'normal AG 11' really has a corrected 16. The calculation uses the formula: AG = Na − (Cl + HCO₃); corrected = AG + 2.5 × (4 − albumin). Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Anion Gap Calculator (+ Albumin Correction) accurate, and what is it based on?+
The method is traceable to authoritative sources, including Figge J et al., Crit Care Med 1998 — albumin correction; Kraut JA & Madias NE, NEJM 2014 — metabolic acidosis. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Anion Gap Calculator (+ Albumin Correction) free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This is a reference aid for healthcare professionals and must be independently verified. It is not for self-diagnosis or self-medication.
What can I use the Anion Gap Calculator (+ Albumin Correction) for?+
It's commonly used for anion gap, anion gap calculator, high anion gap. AG with the albumin correction that catches the gaps hypoalbuminaemia hides.
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