BMI is a quick screening tool that compares your weight with your height. For most adults, a BMI from 18.5 to 24.9 is generally considered the healthy range.
Adult BMI categories
- Underweight: under 18.5
- Healthy weight: 18.5 to 24.9
- Overweight: 25 to 29.9
- Obesity range: 30 and above
Why BMI is useful
It is fast, simple and easy to compare over time. It can be a good starting point for general health discussions.
Why BMI is limited
BMI does not directly measure body fat and can be less useful for very muscular people, older adults, pregnancy or certain health conditions.
Use the BMI Calculator to calculate your BMI in metric or imperial units and see a healthy weight range estimate.
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