# GLP-1 planning tools: BMI and weight loss calculators Canonical page: https://bodienvi.com/calculators Published September 22, 2026. Updated September 22, 2026. By Bodi Envi Clinical Content Team. Two planning aids, a BMI calculator using the CDC's adult categories and a weight change estimator showing a 15 percent change, with what each is based on. ## How to use these tools The two calculators above are planning aids. They exist so that the numbers you meet during an online assessment, your body mass index and the kind of change a course of treatment is measured in, mean something to you before you start. They are not eligibility checks and they do not decide anything. The decision belongs to a licensed healthcare provider, who for applicable Bodi Envi programs practises through Wasef Health, PC. The provider reads your whole assessment, including your health history and your medications, and determines whether treatment is appropriate for you. Treatment is not guaranteed, and a number from a calculator does not change that in either direction. Use the tools to understand, then use the assessment to ask. ## What BMI is and how it is calculated Body mass index is a single number that relates your weight to your height. The CDC defines it as a person's weight in kilograms divided by the square of their height in meters. The calculator above accepts feet, inches and pounds, and converts them with the standard imperial factor: 703 times weight in pounds, divided by height in inches squared. The CDC publishes the adult categories the calculator shows. Below 18.5 is underweight. From 18.5 to less than 25 is healthy weight. From 25 to less than 30 is overweight. From 30 upward is obesity, which the CDC divides into class 1 from 30 to less than 35, class 2 from 35 to less than 40, and class 3, which it also calls severe obesity, at 40 or greater. Two things about BMI are worth saying plainly. First, it is a screening measure. It does not measure body fat and it does not know whether a given weight is muscle, bone or fat, so two people with the same BMI can be in very different shape. Second, it is one of the things a provider looks at, not the only one. The large trials of these medications enrolled adults with a BMI of 30 or more, or 27 or more with a weight-related condition, and the FDA-approved products are indicated for adults with obesity or with overweight and a weight-related condition, but a provider's decision rests on your whole picture. ## What the weight change estimate is based on The estimator takes the weight you enter and shows what a 15 percent change would be, in pounds or kilograms, along with the weight that would leave you at. The percentage is a flat illustration and it was chosen to sit near one published figure: in the STEP 1 trial, published in the New England Journal of Medicine in 2021, adults with obesity or overweight who took branded semaglutide 2.4 mg once weekly for 68 weeks alongside lifestyle support had a mean body weight change of 14.9 percent, against 2.4 percent with placebo. That is an average from one trial of one branded product, and it is offered here as a way to picture what the research measured, not as a forecast of your result. Participants in that trial varied widely around the mean. The trial studied Wegovy®, not a compounded medication, and personalized compounded semaglutide is not FDA-approved and not equivalent to it. Your own course depends on your dose, how long you stay on treatment, what you eat, how you move and factors nobody can predict. Individual experiences and outcomes vary, and no page on this site promises a number. The estimator's percentage is set in the page itself, so the tool and this explanation cannot drift apart. If Bodi Envi changes the illustration, this paragraph changes with it. Personalized compounded medications differ from commercially available brand-name products in formulation, concentration, excipients, preparation methods, and other characteristics. Accordingly, clinical data from studies involving brand-name products should not be assumed to apply to personalized compounded formulations. At this time, the studies referenced above have not evaluated the specific personalized compounded formulations being provided. Therefore, no claims of equivalence in safety, efficacy, quality, or clinical outcomes should be inferred from these studies. ## What the Plans page shows Once you understand the numbers, the practical questions are what a program costs and what it includes, and those live on the Plans page. Bodi Envi publishes one price per program, the same at every dose: personalized compounded semaglutide from $155 per month billed monthly to $125 per month on a twelve month plan, and personalized compounded tirzepatide from $229 per month to $175 per month on the same terms. Each program includes the online assessment, review by a licensed provider, messaging with your care team, a GLP-1 ebook and diet plan, and the medication when it is prescribed. Medication is included only when a licensed healthcare provider determines treatment is medically appropriate and issues a prescription, and completing an assessment or paying for a program does not guarantee one. Compounded personalized semaglutide and compounded personalized tirzepatide are not FDA-approved and are not equivalent to FDA-approved products. Brand names are trademarks of their respective owners. ## Frequently asked questions ### Does my BMI decide whether I qualify for treatment? No. BMI is a screening number, and the CDC describes it that way. A licensed healthcare provider determines whether treatment is appropriate for each individual patient from your full health history, your medications and your goals. The calculator is there to help you understand a number you will see in your assessment, not to answer the question for you. ### Where does the 15 percent in the weight estimator come from? It is a flat illustration chosen to sit near the average result of the STEP 1 trial, which reported a mean body weight change of 14.9 percent over 68 weeks with branded semaglutide 2.4 mg. It is not a prediction for you. Trial participants varied widely around that average, the trial studied the branded product rather than a compounded one, and individual experiences and outcomes vary. Personalized compounded medications differ from commercially available brand-name products in formulation, concentration, excipients, preparation methods, and other characteristics. Accordingly, clinical data from studies involving brand-name products should not be assumed to apply to personalized compounded formulations. At this time, the studies referenced above have not evaluated the specific personalized compounded formulations being provided. Therefore, no claims of equivalence in safety, efficacy, quality, or clinical outcomes should be inferred from these studies. ### Why does the BMI calculator use pounds and inches? Because that is how most people in the United States know their height and weight. The tool converts to the CDC's formula, which is weight in kilograms divided by height in meters squared, using the standard factor of 703 for imperial units. The categories shown are the CDC's adult categories. ### Is BMI accurate for everyone? BMI does not measure body fat directly and does not account for muscle, bone, age or ethnicity, which is why the CDC and this page call it a screening measure. It is a starting point for a conversation with a provider, not a verdict. ### Do these tools store or send my information? No. Both run entirely in your browser with a small script, nothing is sent to Bodi Envi or anyone else, and nothing is saved when you leave the page. ## Sources - CDC, Adult BMI Categories: https://www.cdc.gov/bmi/adult-calculator/bmi-categories.html (checked September 2026) - Wilding et al., Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1), New England Journal of Medicine, 2021, PubMed: https://pubmed.ncbi.nlm.nih.gov/33567185/ (checked September 2026) - Bodi Envi plans and pricing: https://bodienvi.com/plans (checked September 2026)