Body Mass Index (BMI) Calculator
Calculate your Body Mass Index (BMI) based on your height and weight. Find your ideal weight range and health category instantly.
This tool is for informational purposes only. Consult a doctor or dietitian for health decisions.
BMI Formula and Assessment Range
Body Mass Index (BMI) is an international screening tool used to determine whether a person's weight is in a healthy range for their height. BMI is calculated by dividing weight (kg) by the square of height in metres (m²). According to World Health Organization (WHO) standards: below 18.5 is 'Underweight', 18.5-24.9 is 'Normal', 25-29.9 is 'Overweight', and 30 or above is 'Obese'.
BMI Limitations and Points to Consider
Since BMI only accounts for height and weight, it cannot differentiate body composition (muscle vs. fat ratio). For example, a professional bodybuilder may appear in the 'obese' category due to high muscle mass, yet be in excellent health. For this reason, waist circumference measurement should also be taken alongside BMI.
Example Scenarios
| Height | Weight | BMI | Category |
|---|---|---|---|
| 160 cm | 50 kg | 19.5 | Normal |
| 175 cm | 70 kg | 22.9 | Normal |
| 180 cm | 90 kg | 27.8 | Overweight |
| 175 cm | 110 kg | 35.9 | Obese |
What to Do to Reach Your Ideal Weight?
If your BMI is outside the normal range, it is recommended to approach the ideal range with a balanced nutrition plan and regular physical activity. Keep in mind that BMI is not a diagnosis — it is only a general health indicator; consult an expert for a comprehensive assessment.