BMI Calculator
Calculate your Body Mass Index. Supports metric (kg/cm) and imperial (lb/ft) units.
FeetInches
Enter your details and click Calculate.
BMI Categories (Adults 20+)
| BMI Range | Category | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | Malnutrition risk |
| 18.5 – 24.9 | Normal weight | Low risk |
| 25.0 – 29.9 | Overweight | Enhanced risk |
| 30.0 – 34.9 | Obese (Class I) | Medium risk |
| 35.0 – 39.9 | Obese (Class II) | High risk |
| 40.0 + | Obese (Class III) | Very high risk |
How to Use
-
1
Select Metric (kg/cm) or Imperial (lb/ft) mode.
-
2
Enter your weight, height, age, and gender.
-
3
Click Calculate BMI — see your score, category, and healthy weight range.
📖 Want to learn more?
Read our in-depth guide: tips, best practices, FAQs, and real-world examples.
- BMI 18.5–24.9 = healthy range
- BMI doesn't account for muscle mass
- Athletes may have a high BMI but low body fat