Seven free calculators to plan a GLP-1 journey with real numbers — weight-loss projection from trial data, a daily protein target, a BMI and eligibility check, a muscle-loss estimator, and BMR, TDEE, and calorie-deficit tools. Each tool has its own page with the calculator, context, and related FAQs.
Educational information only. These calculators provide estimates based on published clinical-trial averages, standard physiological formulas, and general nutritional guidance. They are not medical advice and do not replace a qualified healthcare professional. Always discuss weight-loss medication, nutrition, and eligibility with your clinician.
Based on the STEP-1 trial (semaglutide 2.4mg, ~68 weeks) and the SURMOUNT-1 trial (tirzepatide 15mg, ~72 weeks), this calculator a…
Open calculator →On a GLP-1, eating less makes it easy to under-eat protein — which accelerates muscle loss. The general guidance for people on wei…
Open calculator →GLP-1 medications are generally considered for adults with a BMI of 30 or above, or a BMI of 27 or above with at least one weight-…
Open calculator →Without resistance training and adequate protein, research suggests that roughly 20–40% of total weight lost during a calorie defi…
Open calculator →Your Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest just to keep you alive — breathing, cir…
Open calculator →Your Total Daily Energy Expenditure (TDEE) is your BMR plus the calories you burn through daily movement and exercise — it's rough…
Open calculator →Losing weight comes down to eating fewer calories than you burn. This calculator uses the standard rule that roughly 7,700 kcal (a…
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