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GLP-1 programs typically consider BMI 30+, or 27+ with a weight-related condition. Check where you stand.

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BMI is a screening measure. It does not confirm whether a treatment is appropriate for you.

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Eligibility is always decided by a licensed clinician. Medical disclaimer

How BMI is calculated and what the bands mean

BMI is weight in kilograms divided by the square of height in meters. If you enter pounds and inches, this calculator multiplies pounds by 703 and divides by inches squared, which is the same sum in US units. For adults aged 20 and older, the CDC groups results into four categories that apply regardless of age, sex or race:

  • Underweight: less than 18.5
  • Healthy weight: 18.5 to less than 25
  • Overweight: 25 to less than 30
  • Obesity: 30 or greater (class 1 is 30 to less than 35, class 2 is 35 to less than 40, class 3 is 40 or greater)

The CDC describes BMI as “a screening measure” that should be considered with other factors. It does not measure body fat directly, which is why a clinician looks at more than this number.

The FDA-approved weight-loss GLP-1s are indicated for adults with a BMI of 30 or higher, or 27 or higher with at least one weight-related condition. That is why this calculator highlights 27 and 30. Meeting a threshold means you may meet common criteria programs use; it is not an approval, and a licensed clinician makes every prescribing decision. The eligibility guide lists the label wording and sources.

Source: CDC, Adult BMI Categories, accessed 20 September 2026.

Common questions

What does BMI measure?
BMI (body mass index) is your weight in kilograms divided by your height in meters squared. It is a quick screening number that estimates body size relative to height. It is the first figure most weight-management programs check because it is the first thing the FDA label for these medications mentions.
What are its limitations?
BMI does not measure body fat directly or show where weight is carried. It does not account for muscle mass, bone density, age, sex, or ethnicity, so two people with the same BMI can have very different health profiles. It is a screening number, not a diagnosis.
Does my BMI result confirm treatment eligibility?
No. BMI is one input a licensed clinician considers alongside your medical history, current medications, and individual circumstances. Programs typically consider BMI 30+, or 27+ with a weight-related condition, but only a clinician can decide whether any treatment is appropriate for you.