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BMI Calculator (Body Mass Index and BSA)

Step-by-step mode. Answer each question and result updates automatically.

Step 1 of 3 33%

Weight *

Step 1 of 3

Height *

Step 2 of 3

Target BMI

Step 3 of 3
kg/m²

All questions complete

Your answers are ready. Review your result below, or select a question to make changes.

    Tap an answer above to edit that question

    World Health Organization. Obesity: preventing and managing the global epidemic. WHO Technical Report Series 894. 2000.
    Mosteller RD. Simplified calculation of body-surface area. N Engl J Med. 1987;317(17):1098.
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