Does BMI measure body fat?

No. BMI uses only weight and height, so it cannot distinguish muscle, fat, bone mass, or fat distribution.

What is my healthy weight range?

The calculator estimates the weight range that would place your BMI between 18.5 and 24.9 for your entered height.

Yes. People with high muscle mass may have an elevated BMI despite having relatively low body fat.

হকচাং

Calculate Body Mass Index in metric or imperial units with CDC adult category indicators and healthy weight range guidance.

Key terms

Unit system

Weight

30220

Height

120230

BMI = weight (kg) / height (m)^2

BMI compares weight with height squared. It is a screening metric for adults, not a direct measure of body composition or health status.

1Convert height to meters and weight to kilograms if imperial units are selected.
2Square the height in meters.
3Divide body weight in kilograms by squared height.
4Compare the result with adult BMI bands: under 18.5, 18.5-24.9, 25-29.9, and 30 or higher.

Adult BMI classification. Not a diagnosis or a child growth assessment.

Reference

Compare common scenarios quickly. Scroll horizontally on smaller screens.

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BMI	Category	Indicator	General note
< 18.5	Underweight	Amber	May indicate low body weight
18.5-24.9	Normal	Green	Common healthy-weight band
25-29.9	Overweight	Orange	Higher body-weight band
30+	Obese	Red	Higher health-risk screening band

For adults, a BMI from 18.5 to less than 25 is commonly classified as the healthy or normal weight range.

Normal

24.22