BMI Values Explained
Some BMI values mark the edge of a category or appear in medical guidelines. Here’s what each one means for adults.
| BMI | What it marks |
|---|---|
| 18.5 | Start of the healthy range |
| 23 | Start of overweight with the lower cut-offs |
| 25 | Start of overweight |
| 27 | Overweight; also used in US treatment guidance |
| 30 | Start of obesity, class 1 |
| 35 | Start of obesity, class 2 |
| 40 | Obesity, class 3 |
To find the BMI for any height and weight, use the BMI chart or the BMI calculator.