BMI Calculator
Body mass index for adults, plus the healthy weight range for your height.
cm
kg
Your BMI
24.2
Normal weight
- Healthy weight range–
How BMI is calculated
Metric: BMI = weight (kg) ÷ height (m)²
Imperial: BMI = 703 × weight (lb) ÷ height (in)²
Imperial: BMI = 703 × weight (lb) ÷ height (in)²
BMI categories (adults)
| Category | BMI |
|---|---|
| Underweight | Below 18.5 |
| Normal weight | 18.5 – 24.9 |
| Overweight | 25 – 29.9 |
| Obese | 30 and above |
BMI is a quick screening tool, not a diagnosis. It doesn't distinguish muscle from fat, so it can overestimate body fat in very muscular people and underestimate it in older adults who've lost muscle mass. Talk to a doctor for a fuller picture of your health.
No. Children and teens are assessed using age- and sex-specific BMI percentiles, not the fixed adult categories used here. This calculator is intended for adults.
This tool is for general information only and is not medical advice. See our Terms of Use.