Calculate your BMI, weight category, and healthy weight range. Free advanced BMI calculator with formula, examples, and FAQ.
Body Mass Index (BMI) is a widely used screening tool that estimates body fat based on your height and weight. While BMI doesn't directly measure body fat or account for muscle mass, it provides a quick assessment of whether your weight is in a healthy range. This advanced calculator also provides your weight category and healthy weight range for your height.
BMI = Weight(kg) / Height(m)²
Healthy Weight Range: 18.5 × Height² to 24.9 × Height²BMI divides your weight in kilograms by the square of your height in meters. The WHO classifies BMI into categories: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), and Obese (30+). The healthy weight range shows what you should weigh to maintain a BMI between 18.5 and 24.9.
| Input | Output |
|---|---|
| 70 kg, 175 cm | BMI: 22.9 (Normal Weight), Healthy Range: 56.7 - 76.2 kg |
| 90 kg, 178 cm | BMI: 28.4 (Overweight), Healthy Range: 58.6 - 78.8 kg |
| 50 kg, 165 cm | BMI: 18.4 (Underweight), Healthy Range: 50.4 - 67.8 kg |