Body Mass Index (BMI) is a simple screening measure of weight relative to height. It's a general indicator only — it doesn't account for muscle mass, bone density, age or body composition.
No, BMI doesn't distinguish muscle from fat, so it can be less accurate for athletes, older adults, or during pregnancy.
18.5 to 24.9 is generally considered a normal weight range for most adults.
BMI = weight (kg) ÷ height (m)². This tool does the math for you automatically from your inputs.
No, BMI is just one screening indicator. Consult a doctor for a complete health assessment that includes body composition.