Body Mass Index
Calculate your Body Mass Index (BMI) to assess if your weight is healthy for your height. Understand what your BMI means and learn about maintaining a healthy weight.
Your Results
Your BMI
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BMI Categories
Understanding Your BMI
BMI values are used to categorize weight status and assess potential health risks.
BMI Categories
BMI Range | Category | Health Risk |
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Below 16.0 | Severe Thinness | Severe health risk |
16.0 - 17.0 | Moderate Thinness | Moderate health risk |
17.0 - 18.5 | Mild Thinness | Mild health risk |
18.5 - 24.9 | Normal | Low risk |
25.0 - 30.0 | Overweight | Increased risk |
30.0 - 35.0 | Obese Class I | High risk |
35.0 - 40.0 | Obese Class II | Very high risk |
Above 40.0 | Obese Class III | Extremely high risk |
BMI Guide
Everything You Need to Know
Learn about BMI calculation, its importance, and its limitations in assessing health.
What is BMI?
Body Mass Index (BMI) is a simple measurement using your height and weight to work out if your weight is healthy. The BMI calculation divides an adult's weight in kilograms by their height in metres squared.
BMI = weight (kg) ÷ height² (m²)
Health Implications
Risks of High BMI
- Type 2 diabetes
- Heart disease
- High blood pressure
- Joint problems
- Certain cancers
Risks of Low BMI
- Weakened immune system
- Bone density loss
- Anemia
- Fertility issues
- Nutritional deficiencies
Limitations of BMI
While BMI is a useful starting point, it has several limitations:
- Doesn't account for muscle mass
- May not be suitable for athletes
- Doesn't consider body fat distribution
- May not be appropriate for elderly people
- Varies among different ethnic groups