BMI Calculator
Calculate your Body Mass Index
Pro Tip
BMI is just one indicator of health. Waist circumference, body composition, fitness level, and overall health markers are equally important. If you're an athlete or have high muscle mass, BMI may not accurately reflect your health status. Consult a healthcare provider for personalized advice.
BMI Categories and Health Implications
| Category | BMI Range | Health Indication |
|---|---|---|
| Underweight | < 18.5 | May indicate malnutrition |
| Normal Weight | 18.5 - 24.9 | Healthy weight range |
| Overweight | 25.0 - 29.9 | Increased health risks |
| Obese (Class I) | 30.0 - 34.9 | High health risks |
| Obese (Class II) | 35.0 - 39.9 | Very high health risks |
| Obese (Class III) | ≥ 40.0 | Extremely high health risks |
How to Calculate BMI in 2026
1
Select Unit System
Choose between Metric (kg/cm) or Imperial (lbs/inches) based on your preference.
2
Enter Your Measurements
Input your current weight and height accurately for the most precise BMI calculation.
3
View Your Results
Get your BMI score and category (Underweight, Normal, Overweight, or Obese) instantly.