Body Mass Index (BMI) Calculator
Check your BMI and find out what it means for your health. Learn more
What is BMI?
BMI (Body Mass Index) is a simple indicator comparing body weight to height, used for quick assessment of weight-to-height proportion. It is calculated using the formula: BMI = weight (kg) / (height (m))².
It is a screening tool - it helps identify individuals who may need further medical or dietary evaluation, but it does not provide a complete picture of health.
Important limitations: BMI does not distinguish muscle from fat, does not account for age or gender, and may be misleading for very muscular individuals, seniors, or those with atypical body composition.
The BMI result should be treated as a guideline — the final assessment should include a medical examination, body composition analysis, and individual health context.
If you want to better manage your weight, regular calorie tracking can be helpful. For this purpose, consider using a calorie calculator or the CaloriQuest app - a practical calorie counter that makes meal planning and progress tracking easier.
BMI Categories (WHO standard)
| BMI Range | Category |
|---|---|
| <16.0 | Starvation |
| 16.0 – 16.9 | Emaciation |
| 17.0 – 18.4 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25.0 – 29.9 | Overweight |
| 30.0 – 34.9 | Obesity Class I |
| 35.0 – 39.9 | Obesity Class II |
| ≥40 | Obesity Class III |
Why is it important to maintain a healthy BMI?
- Supports healthy blood pressure and cardiovascular function
- Reduces strain on joints and spine, making daily activity easier
- Reduces the risk of developing chronic diseases such as type 2 diabetes and heart disease
- Promotes better well-being, increased energy, and stronger immunity
- Helps maintain physical fitness and quality of life over time
Worried about your result?
If your BMI is outside the normal range, consider consulting a doctor or dietitian. In everyday health care, the CaloriQuest app can help — a calorie counter that makes it easier to manage your diet and achieve your goals.
