BMI (Body Mass Index) Calculator
⚖️ BMI (Body Mass Index) Calculator
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📘 What is BMI (Body Mass Index)?
BMI is a value derived from the weight and height of a person and is used as an indicator of body fatness. It is widely used to categorize individuals as underweight, normal weight, overweight, or obese based on ranges determined by health organizations.
🧮 BMI Formula
Metric: BMI = weight (kg) / height² (m²)
Imperial: BMI = (weight (lbs) / height² (in²)) × 703
📊 BMI Classification
- Underweight: < 18.5
- Normal weight: 18.5 – 24.9
- Overweight: 25 – 29.9
- Obese: ≥ 30
📈 BMI by Age & Gender
| Age Group | Recommended BMI |
|---|---|
| 18–24 | 19 – 24 |
| 25–34 | 20 – 25 |
| 35–44 | 21 – 26 |
| 45–54 | 22 – 27 |
| 55–64 | 23 – 28 |
| 65+ | 24 – 29 |
💡 Uses of the BMI Calculator
- Track weight loss or gain progress
- Check health status and risk levels
- Assess if you’re in a healthy weight range
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⚠️ Disclaimer:
BMI is a general health screening tool. It does not distinguish between muscle and fat and may not be accurate for athletes or pregnant women. Always consult your doctor for medical advice.
Use this free online BMI calculator to check your body fat category and make smarter fitness and nutrition decisions.