Learn what Body Mass Index (BMI) is, why it matters, and how to maintain a healthy range for a better you.
Body Mass Index, or BMI, is a simple calculation used to assess whether a person has a healthy body weight for their height. It’s calculated by dividing an individual’s weight in kilograms by the square of their height in meters (kg/m²). While BMI isn’t a perfect measure of health, it’s a useful starting point for understanding your body composition and potential health risks.
Monitoring your BMI can help you and your healthcare provider identify potential health risks associated with being underweight, overweight, or obese. Maintaining a healthy BMI is linked to a lower risk of conditions like heart disease, diabetes, and joint issues. It’s also a great way to track your progress if you’re working on fitness or weight management goals.
| Category | BMI Range |
|---|---|
| Underweight | Below 18.5 |
| Normal weight | 18.5 – 24.9 |
| Overweight | 25 – 29.9 |
| Obesity | 30 and above |
Achieving and maintaining a healthy BMI is about adopting sustainable lifestyle changes. Here are some practical tips to help you stay in the healthy range:
BMI was developed by Adolphe Quetelet in the 1830s as a quick way to assess population health trends.
Over 1.9 billion adults worldwide are overweight, according to the WHO, making BMI a critical health metric.
BMI doesn’t account for muscle mass, so athletes may have a high BMI but be perfectly healthy.
“Take care of your body. It’s the only place you have to live.”— Jim Rohn