BMI Calculator
Calculate your Body Mass Index (BMI) to understand where you fall on the weight spectrum. BMI is a simple screening tool used worldwide to categorize weight status.
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Your Body Mass Index
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Healthy Weight Range
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Weight to Healthy BMI
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BMI Categories
What is BMI?
Body Mass Index (BMI) is a simple calculation using your height and weight to estimate body fat. The formula is: weight (kg) / height² (m²). While BMI doesn't measure body fat directly, it's a useful screening tool correlated with more direct measures of body fat.
Limitations of BMI
BMI doesn't distinguish between muscle and fat mass. Athletes with high muscle mass may have a high BMI despite being healthy. For a more complete picture, consider using our Body Fat Calculator alongside BMI.
Understanding BMI Ranges
| Category | BMI Range | Health Risk |
|---|---|---|
| Underweight | < 18.5 | Possible nutritional deficiency |
| Normal | 18.5 - 24.9 | Low risk |
| Overweight | 25 - 29.9 | Moderate risk |
| Obese Class I | 30 - 34.9 | High risk |
| Obese Class II | 35 - 39.9 | Very high risk |
| Obese Class III | ≥ 40 | Extremely high risk |