APACHE II ICU Mortality Score Calculator

Calculate APACHE II (Acute Physiology and Chronic Health Evaluation) score for ICU patients. Predicts in-hospital mortality from 12 physiological parameters.

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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 It Works

Calculate APACHE II (Acute Physiology and Chronic Health Evaluation) score for ICU patients. Predicts in-hospital mortality from 12 physiological parameters

Each component has a specific meaning:

  • 12 physiological parameters — The 12 physiological parameters recorded for the patient or scenario being assessed.

Note: Interpret the apache ii score result against the clinical thresholds and context described above.

How to Use

Enter the 12 physiological parameters for the patient or scenario you are assessing. Calculate APACHE II (Acute Physiology and Chronic Health Evaluation) score for ICU patients. Predicts in-hospital mortality from 12 physiological parameters. Use the apache ii score result to inform your clinical assessment.

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Frequently Asked Questions