Calculate Your Body Mass Index
BMI Categories Reference
Standard weight status categories associated with BMI ranges for adults.
| BMI Range | Weight Status | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | Increased risk of nutritional deficiency and osteoporosis. |
| 18.5 – 24.9 | Normal Weight | Lowest risk of weight-related health issues. |
| 25.0 – 29.9 | Overweight | Increased risk of heart disease and type 2 diabetes. |
| 30.0 – 34.9 | Obese Class I | High risk of cardiovascular issues and joint problems. |
| 35.0 – 39.9 | Obese Class II | Very high risk of serious health complications. |
| 40.0 and Above | Obese Class III | Extremely high risk of life-threatening conditions. |
Source: World Health Organization (WHO) BMI Classification
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Beyond the Numbers: Understanding BMI
Body Mass Index (BMI) is a simple yet powerful screening tool used by healthcare professionals worldwide. It measures the relationship between your weight and height to estimate body fatness and identify potential health risks.
While BMI is an excellent starting point for understanding your health status, it's important to remember that it's a screening tool, not a diagnostic one. It provides a general category (Underweight, Normal, Overweight, or Obese) that helps you and your doctor understand where you stand relative to healthy ranges.
Did you know?
BMI doesn't directly measure body fat. Factors like muscle mass, bone density, and overall body composition can influence your score. For example, athletes often have high BMIs due to muscle weight, even with low body fat.
Screening Tool
A quick way to identify if your weight might be putting your health at risk.
Global Standard
Used by the WHO and CDC as the primary indicator for weight-related health.
Health Indicator
Helps predict risks for conditions like heart disease, type 2 diabetes, and more.
Actionable Data
Provides a baseline to discuss lifestyle changes and health goals with your doctor.
Want to learn more about BMI?
Read our comprehensive articles about body mass index, health metrics, and how to interpret your results.
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