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The Body Mass Index (BMI) Calculator helps you determine whether your weight is healthy for your height. It considers age, height, and weight to classify your body status accurately.
BMI is a numerical value derived from a person's height and weight. It is widely used as a general indicator of body fatness and health risk.
Being underweight or overweight can increase health risks. BMI helps identify whether further lifestyle changes or medical advice may be needed.
| Category | BMI Range (kg/m²) |
|---|---|
| Severe Thinness | < 16 |
| Moderate Thinness | 16 – 17 |
| Mild Thinness | 17 – 18.5 |
| Normal | 18.5 – 25 |
| Overweight | 25 – 30 |
| Obese Class I | 30 – 35 |
| Obese Class II | 35 – 40 |
| Obese Class III | > 40 |
High BMI is linked to heart disease, diabetes, high blood pressure, stroke, sleep apnea, joint problems, and certain cancers.
Low BMI can lead to malnutrition, weakened immunity, osteoporosis, fertility issues, and higher mortality risk.
BMI does not directly measure body fat. Factors like muscle mass, age, sex, and ethnicity can affect results.
Athletes or muscular individuals may appear overweight, while older adults may have excess body fat despite a normal BMI.
Metric: BMI = weight (kg) / height² (m)
US Units: BMI = 703 × weight (lb) / height² (in)
BMI Prime compares your BMI with the upper normal limit (25). Values above 1 indicate overweight.
The Ponderal Index is more accurate for very tall or very short individuals, using height cubed instead of squared.
BMI works well for most people, but athletes and muscular individuals should consider additional measurements.
A BMI between 18.5 and 25 is considered healthy for adults.
Yes. BMI is a screening tool. Always consult a healthcare professional for personalized advice.
Email: support@c4calculate.in
