What is a healthy BMI range?

For most adults, a BMI between 18.5 and 24.9 is considered a typical range, though BMI doesn't distinguish muscle from fat and should be read alongside other measurements.

Is BMI accurate for everyone?

BMI is a fast population-level screen, not a diagnosis. It can't tell muscle from fat, so athletes and very muscular people often read "overweight" despite low body fat, and it doesn't account for age, sex, bone density, or where fat is carried on the body.

BMI calculator

Body Mass Index estimates whether your weight falls in a typical range for your height.

Height — feet

Height — inches

Weight (lbs)

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Ranges: Under 18.5 underweight · 18.5–24.9 typical · 25–29.9 overweight · 30+ obesity class

What BMI does and doesn't tell you

BMI divides weight by the square of height. It's a fast population-level screen, not a diagnosis — it was designed for tracking trends across large groups, not judging one individual body.

It can't tell muscle from fat, so athletes and very muscular people often read "overweight" despite low body fat.
It doesn't account for age, sex, bone density, or where fat is carried on the body.
Waist circumference or body fat % usually add more useful context.

BMI is a screening tool, not a diagnosis. Talk to a healthcare provider for a full picture of your health.

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