ICU Nutritional Requirement Calculator

Calculate caloric and protein targets for ICU patients using ASPEN/ESPEN guidelines, including adjustments for obesity, malnutrition, renal replacement therapy, and mechanical ventilation.

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 It Works

Calculate caloric and protein targets for ICU patients using ASPEN/ESPEN guidelines, including adjustments for obesity, malnutrition, renal replacement therapy, and mechanical ventilation

Each component has a specific meaning:

  • ASPEN/ESPEN guidelines — The aspen/espen guidelines recorded for the scenario being assessed.
  • Including adjustments — The including adjustments recorded for the scenario being assessed.

Note: Interpret the icu nutrition result against the thresholds and context described above.

How to Use

Enter the ASPEN/ESPEN guidelines, including adjustments for the scenario you are assessing. Calculate caloric and protein targets for ICU patients using ASPEN/ESPEN guidelines, including adjustments for obesity, malnutrition, renal replacement therapy, and mechanical ventilation. Use the icu nutrition result to inform your calculation.

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Frequently Asked Questions