Delta Ratio (Delta Gap) Calculator

About Delta Ratio (Delta Gap) Calculator

Anion gap and delta ratio for mixed acid-base disorders. The Delta Ratio (Delta Gap) Calculator on Picscaler gives you the answer instantly in your browser, with no sign-up.

Inputs: Sodium (mmol/L), Chloride (mmol/L) and Bicarbonate (mmol/L). Results shown: Anion gap, Delta ratio and Interpretation.

Formula: Anion gap = Na - Cl - HCO3; delta ratio = (anion gap - 12) / (24 - HCO3). Uses a normal anion gap of 12 and normal bicarbonate of 24. Laboratory ranges vary.

This tool is for education and information. It does not replace clinical judgement, so confirm results against your laboratory's reference ranges and local guidelines.

How to use Delta Ratio (Delta Gap) Calculator

1. Enter Sodium (mmol/L), Chloride (mmol/L) and Bicarbonate (mmol/L).
2. Press Calculate.
3. Read Anion gap, Delta ratio and Interpretation in the result table.
4. Use the formula and notes under the result to check the working.

Frequently asked questions

Is Delta Ratio (Delta Gap) Calculator free?

Yes. Delta Ratio (Delta Gap) Calculator is completely free to use on Picscaler.

Do I need to create an account?

No. You can use it straight away without signing up.

Is my data safe?

Your input is processed in your browser on your own device and is not uploaded to Picscaler.

Can I use it for medical decisions?

No. It is an educational aid and does not replace professional medical judgement.