BMI Calculator
Calculate your Body Mass Index instantly — find your weight category, healthy weight range, and personalised guidance
Your BMI Result
Enter your height and weight, then click Calculate.
BMI Classification Table
| BMI Range | Category | Health Risk |
|---|---|---|
| < 18.5 | Underweight | Malnutrition, osteoporosis |
| 18.5 – 24.9 | Normal Weight | Lowest risk |
| 25.0 – 29.9 | Overweight | Moderate risk |
| 30.0 – 34.9 | Obese Class I | High risk |
| 35.0 – 39.9 | Obese Class II | Very high risk |
| ≥ 40.0 | Obese Class III | Extremely high risk |
Frequently Asked Questions
About This BMI Calculator
This free BMI Calculator uses the standard WHO formula to instantly classify your weight. It supports both metric (cm/kg) and imperial (ft–in/lbs) inputs. You get your BMI score, health category, and the healthy weight range for your height.
Healthy Weight by Height (Metric)
| Height | Healthy Range (kg) |
|---|---|
| 155 cm | 44.5 – 59.9 kg |
| 160 cm | 47.4 – 63.7 kg |
| 165 cm | 50.3 – 67.7 kg |
| 170 cm | 53.5 – 72.0 kg |
| 175 cm | 56.7 – 76.3 kg |
| 180 cm | 60.0 – 80.7 kg |
| 185 cm | 63.3 – 85.2 kg |
Healthy Weight by Height (Imperial)
| Height | Healthy Range (lbs) |
|---|---|
| 5'0" | 97 – 130 lbs |
| 5'3" | 107 – 141 lbs |
| 5'6" | 118 – 154 lbs |
| 5'9" | 128 – 168 lbs |
| 6'0" | 140 – 183 lbs |
| 6'3" | 152 – 199 lbs |
Standards & References
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