Tirzepatide 5–15 mgSURMOUNT-1Estimate, not medical advice

Average weight loss on tirzepatide, based on your BMI.

Here's how it works: enter your weight and height, then pick a medication and dose. The tool takes the average weight loss measured in that drug's main clinical trial — STEP-1 for semaglutide, SURMOUNT-1 for tirzepatide — and maps it onto your starting weight, plotting your projected weight and BMI week by week. The numbers come straight from the published trials, not a generic calorie formula.

Find out how much you'd lose →

Based on your Body Mass Index and clinical-trial studies.

§ 01Your projection

anchored to trial endpoints

Medication & target dose

Current weight (lb)

Height

174 lb

projected at week 72

−46 lb

-20.9% of body weight

33.4 → 26.5

BMI

In SURMOUNT-1, 57% of participants lost ≥20% of body weight. Individual results vary widely — these are trial means, not a prediction for you.

Curve anchored to the published 72-week endpoint; the trajectory between is modeled (GLP-1 loss is front-loaded, plateauing by ~month 14). Source: SURMOUNT-1 ↗

Maintenance calories · energy estimate

Sex

Age

Activity

2,360

kcal/day to maintain

Mifflin-St Jeor estimate of the calories your body burns at this weight. Shown for context only — it does not drive the projection above, which comes from trial data.

Want meal plans and workouts to keep it off?

You burn about 2,360 kcal/day at this weight. g1v builds the meal plans and workout plans to hit that number — and maintain your results for good.

Get your plan at g1v →

This is an educational estimate. Figures are population means from randomized trials and will differ for any individual based on dose, adherence, diet, activity, and physiology. It is not a prediction, a guarantee, or medical advice. Talk to a licensed clinician before starting or changing any medication.

Sources: STEP-1 ↗ · SURMOUNT-1 ↗

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