HLT
BMI Calculator
Enter your height and weight in either metric or imperial units to get your BMI and its standard health category.
Not a diagnosis. BMI is a screening formula, not a medical assessment — see the Health & Fitness section intro for more on that.
Standard BMI categories
| BMI | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25.0 – 29.9 | Overweight |
| 30.0 and above | Obese |
Frequently asked
Is BMI an accurate measure of health?
BMI is a rough screening tool based only on height and weight. It doesn't distinguish muscle from fat, so athletes or very muscular people can show as "overweight" despite low body fat. It's a starting point, not a diagnosis.
What formula does this use?
Metric: weight in kilograms divided by height in meters squared. Imperial: 703 times weight in pounds, divided by height in inches squared. Both produce the same standard BMI scale.