Winter’s Formula Calculator

Expected CO₂ compensation for metabolic acidosis.

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Expected pCO₂27–31 mmHg
Measured pCO₂30 mmHg

If the measured pCO₂ is outside the expected range, there may be a second acid-base disorder. This is a clinical tool for specialist interpretation.

Expected range27–312728293031

Medical disclaimer: This tool is for education and is not medical advice. Read more.

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Frequently asked questions

What does the Winter’s Formula Calculator do?

Expected CO₂ compensation for metabolic acidosis. Enter your values and the result and chart update instantly.

How accurate is it?

It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.

Is my information stored or shared?

No. All calculations run in your browser and nothing you type is sent to a server or saved.

What can I search to find this tool?

People find it by searching for: winters formula; expected pco2 compensation; respiratory compensation acidosis.

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