Mallampati Airway Classification

Predicts intubation difficulty by visualizing oropharynx with mouth open and tongue protruded: Class I — soft palate, uvula, fauces, pillars fully visible; Class II — soft palate, uvula visible; Class III — soft palate, base of uvula; Class IV — only hard palate visible.

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.
Advertisement

How to Use

Enter the values for the scenario you are assessing. Predicts intubation difficulty by visualizing oropharynx with mouth open and tongue protruded: Class I — soft palate, uvula, fauces, pillars fully visible; Class II — soft palate, uvula visible; Class III — soft palate, base of uvula; Class IV — only hard palate visible. Use the mallampati class result to inform your calculation.

Frequently Asked Questions