Body mass index (BMI) calculator
The Body Mass Index (BMI) tool is used to derive the height to weight ratio of a person, based on age and gender. It is not a diagnostic tool for body fat, because an overweight person may have the same BMI as a healthy weight person who has lots of muscle tone.
What BMI means
Risk of Disease According to BMI and Waist Size |
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| BMI | BMI Meaning | Waist less than or equal to 40 in. (men) or 35 in. (women) |
Waist greater than 40 in. (men) or 35 in. (women) |
| 18.5 or less | Underweight | N/A | N/A |
| 18.5 - 24.9 | Normal | N/A | N/A |
| 25.0 - 29.9 | Overweight | Increased | High |
| 30.0 - 34.9 | Obese | High | Very High |
| 35.0 - 39.9 | Obese | Very High | Very High |
| 40 or greater | Extremely Obese | Extremely High | Extremely High |
Use the other health tools to help you exercise more efficiently and lose more weight in a healthier way.
Enjoy better health!
