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BMI Calculator
BMI (Body Mass Index) is a simple health measurement that uses your weight and height to estimate whether your body weight is healthy.
It is calculated using the formula: BMI=Weight (kg)[Height (m)]2\text{BMI} = \frac{\text{Weight (kg)}}{[\text{Height (m)}]^2}BMI=[Height (m)]2Weight (kg)
📊 BMI Categories and Limits
| BMI Value | Category | Health Meaning |
|---|---|---|
| Below 16 | Severely Underweight | May indicate malnutrition |
| 16 – 16.9 | Very Underweight | Health risk due to low body fat |
| 17 – 18.4 | Underweight | May need nutritional improvements |
| 18.5 – 24.9 | Normal Weight | Ideal/Healthy range |
| 25 – 29.9 | Overweight | Increased risk of health issues |
| 30 – 34.9 | Obese Class I | Moderate risk of chronic diseases |
| 35 – 39.9 | Obese Class II | High health risk |
| 40 and above | Obese Class III | Very high risk, also called “morbid obesity” |
📌 Notes:
- Minimum BMI: Ideally not less than 18.5
- Maximum BMI: There is no fixed max, but anything above 40 is considered very high risk.
- BMI does not account for muscle mass, body composition, or fat distribution.
💡 BMI is Best For:
- General population (adults aged 18–65)
- Quick screening tool for weight-related health risks
⚠️ BMI is Not Ideal For:
- Athletes with high muscle mass
- Children and teenagers (they need BMI-for-age charts)
- Pregnant or breastfeeding women
- Elderly individuals
