This Body Mass Index (BMI) tells you your degree of excess weight, based on weight and height. A normal BMI is between 18.5 and 25.
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| BMI |
Classification |
Health Risk |
| Under 18.5
| Underweight
| Minimal |
| 18.5 - 24.9 |
Normal Weight |
Minimal |
| 25 - 29.9 |
Overweight |
Increased |
| 30 - 34.9 |
Obese |
High |
| 35 - 39.9 |
Severely Obese |
Very High |
| 40 and over |
Morbidly Obese |
Extremely High |
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Understanding Your Results
BODY MASS INDEX
Underweight: < 18.5
Healthy Weight: 18.5 – 24.9
Overweight: 25 – 29.9
Obese (Class I): 30 – 34.9
Severely Obese (Class II): 35 – 39.9
Morbidly Obese (Class III): > 40
1 Based on information from the American Society for Metabolic and Bariatric Surgery
PERCENTILE
This index tells you where you stand relative to others.
- If you are at 50th percentile, you are close to the average weight
- At 90th percentile, your weight is greater than 90% of others
- At 20th percentile, 80% of others weigh more than you