Body Mass Index (BMI)

Fast and accessible. Auto-calculates as you type.

Units
Metric Imperial
Autosaved locally
Enter your height and weight.
10
18.5
25
30
35
40
50
UnderNormalOverOb-IOb-IIOb-III

BMI categories: <18.5 underweight, 18.5–24.9 normal, 25.0–29.9 overweight, 30.0–34.9 obesity I, 35.0–39.9 obesity II, ≥40 obesity III. BMI is a screening tool, not a diagnosis.