What is BMI and Why It Matters
BMI (Body Mass Index) is a quick way to check if your weight is healthy for your height. It helps doctors and fitness experts spot potential weight problems early. Think of it as a basic health checkpoint - not perfect, but a useful starting point for most people.
Adult BMI Chart (Age 20+)
Here's how doctors classify adult BMI results:
| BMI Range | Weight Status |
|---|---|
| Less than 18.5 | Underweight |
| 18.5 - 24.9 | Normal weight |
| 25 - 29.9 | Overweight |
| 30 - 34.9 | Obesity (Class 1) |
| 35 - 39.9 | Obesity (Class 2) |
| 40+ | Obesity (Class 3) |
Child & Teen BMI Chart (Age 2-19)
For kids, BMI is age- and gender-specific. Doctors compare your child's BMI to growth charts:
| Percentile Range | Weight Status |
|---|---|
| Below 5th | Underweight |
| 5th - 85th | Healthy weight |
| 85th - 94th | Overweight |
| 95th or higher | Obesity |
Risks of Unhealthy BMI
Too High (Overweight/Obesity):
Too Low (Underweight):
Pro Tip: BMI is just one tool. Always talk to a doctor for personalized health advice, especially if you're an athlete (muscle weighs more than fat!) or have an unusual body type.