Killip Classification for Heart Failure in Acute MI

Classifies heart failure severity in acute MI: Class I (no heart failure, no crackles, no S3 — 30-day mortality ~6%), Class II (mild HF, crackles <50% lung fields or S3 — 17%), Class III (pulmonary edema — 38%), Class IV (cardiogenic shock, SBP <90 + hypoperfusion — 67–81%).

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How to Use

Enter the values for the scenario you are assessing. Classifies heart failure severity in acute MI: Class I (no heart failure, no crackles, no S3 — 30-day mortality ~6%), Class II (mild HF, crackles <50% lung fields or S3 — 17%), Class III (pulmonary edema — 38%), Class IV (cardiogenic shock, SBP <90 + hypoperfusion — 67–81%). Use the killip classification result to inform your calculation.

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Frequently Asked Questions