Free BMI Calculator
Calculate your Body Mass Index instantly. Enter your height and weight to see your BMI score, category, and healthy weight range.
Your BMI
22.9
Normal Weight
Healthy BMI Range
18.5 – 24.9
Healthy Weight Range
56.7 – 76.2 kg
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BMI Categories (WHO Classification)
| Category | BMI Range |
|---|---|
| Underweight | Less than 18.5 |
| Normal Weight | 18.5 – 24.9 |
| Overweight | 25.0 – 29.9 |
| Obese (Class I) | 30.0 – 34.9 |
| Obese (Class II) | 35.0 – 39.9 |
| Obese (Class III) | 40.0 and above |
How to Use the BMI Calculator
- Select your preferred unit system (Metric or Imperial).
- Enter your weight and height.
- Your BMI score, category, and healthy weight range update instantly.
Frequently Asked Questions
BMI (Body Mass Index) is a simple calculation using height and weight. It's used as a screening tool to identify potential weight categories that may lead to health problems.
A BMI between 18.5 and 24.9 is considered a healthy weight range for most adults.
BMI does not distinguish between muscle and fat. Athletes with high muscle mass may have a high BMI without having excess body fat.
No. This BMI calculator is completely free and requires no registration or sign-up.