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Adult weight and height

BMI Calculator & Printable Adult BMI Chart

Enter your height and weight to calculate BMI and view a printable chart for adults aged 20 and older.

No account needed. Free tracking, from the first entry.

A little about you

This chart uses CDC categories for adults aged 20 and older. Children and teens need BMI-for-age assessment.

Adult women and men use the same BMI formula and categories. BMI does not measure body fat or diagnose health; pregnancy and high muscle mass limit its usefulness.

Your BMI
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Adult BMI chart

CategoryBMI range
Underweight< 18.5
Healthy weight18.5 – < 25
Overweight25 – < 30
Obesity≥ 30

This chart uses CDC categories for adults aged 20 and older. Children and teens need BMI-for-age assessment.

Adult women and men use the same BMI formula and categories. BMI does not measure body fat or diagnose health; pregnancy and high muscle mass limit its usefulness.

CDC · Adult BMI categories

For adults. Estimates are not medical advice. Pregnancy, breastfeeding, eating disorders and medical conditions need individualized guidance.

The method, in plain language.

How adult BMI is calculated

BMI equals weight in kilograms divided by height in metres squared. CDC categories are underweight below 18.5, healthy weight from 18.5 to below 25, overweight from 25 to below 30, and obesity at 30 or above.

Read the result in context

BMI is a screening measure, not a body-fat measurement or diagnosis. Muscle mass and pregnancy can make it less useful. A clinician can interpret weight alongside health history and other measures.

Methods & sourcesCDC · Adult BMI categories

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A few useful answers

Is the BMI calculation different for women?

No. Adult women and men use the same formula and CDC category thresholds. These categories do not describe body-fat percentage or individual health on their own.

Can children use this BMI chart?

This page is for adults aged 20 and older. Children and teenagers need BMI-for-age assessment that accounts for age and sex; these adult thresholds do not apply.