BMI Calculator
BMI Calculator (Adult Age 20+)
How BMI is Calculated
In US units: BMI = (weight in lb / height in inches²) × 703
In metric units: BMI = weight (kg) / height² (m²)
BMI Categories (CDC)
- BMI ≤ 18.4: Underweight
- BMI 18.5 – 24.9: Normal
- BMI 25.0 – 39.9: Overweight
- BMI ≥ 40.0: Obese
References
FAQs
Is BMI an accurate measure of health?
BMI is a useful screening tool that provides a general indication of body fat based on height and weight. However, it doesn't differentiate between fat and muscle mass...
What is a healthy BMI range for adults?
According to the CDC, a healthy BMI range for adults is 18.5 to 24.9. Below 18.5: Underweight; 18.5 – 24.9: Normal; 25.0 – 29.9: Overweight; 30.0 and above: Obese.