BMI Calculator
Check your Body Mass Index and find your healthy weight range instantly
Quick BMI Check
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UnderweightNormalOverweightObese
Want a complete analysis with TDEE, macros, and meal plans?
Full TDEE & Macro CalculatorBMI Categories Chart
| Category | BMI Range | Health Risk |
|---|---|---|
| Underweight | < 18.5 | Moderate |
| Normal weight | 18.5 - 24.9 | Low |
| Overweight | 25.0 - 29.9 | Increased |
| Obese Class I | 30.0 - 34.9 | High |
| Obese Class II | 35.0 - 39.9 | Very High |
| Obese Class III | ≥ 40.0 | Extremely High |
Understanding BMI
Body Mass Index (BMI) is a widely used screening tool that estimates body fatness based on weight and height. While not perfect, it's a useful starting point for assessing health risks related to weight.
Limitations of BMI
- Doesn't distinguish between muscle and fat — athletes may show "overweight" BMI
- Doesn't account for body fat distribution (belly fat is more dangerous)
- Less accurate for elderly people, pregnant women, and children
- Different ethnic groups may have different risk thresholds
For a more complete picture, use our TDEE Calculator which includes body composition estimates, body fat percentage, and lean mass calculations alongside BMI.