Evidence-based tools for the GLP-1, peptide, and metabolic medication landscape. Free calculators grounded in STEP, SURMOUNT, and SCALE — plus clinical-trial-backed guides on what's prescribed today and what's coming next.
Based on clinical trial data from STEP, SURMOUNT, and SCALE trials.
Calculators
Every calculator runs in your browser. We don't store your inputs.
See your expected loss curve based on trial data for your medication.
Find your evidence-based calorie target with a GLP-1-aware deficit.
Calculate daily protein and how to hit it across smaller GLP-1 meals.
Build your full escalation timeline with next-increase date.
Estimate monthly out-of-pocket cost by state, insurance, and savings card.
More tools coming: retatrutide projector, peptide reference, compounded medication calculator.
Why GLP1Tree
Projections use published efficacy from peer-reviewed trials, not anecdotes. We cite our sources on every page.
No accounts, no paywalls, no email harvesting. Ads keep the lights on so the tools stay free.
Designed for the phone in your pocket on injection day. Share your results with a link.
From the journal
A week-by-week guide to your first month on Ozempic, Wegovy, or Mounjaro — appetite changes, side effects, and what's normal.
10 min read
Getting StartedPlain-English breakdown of STEP, SURMOUNT, and SCALE trial data — what average weight loss on Wegovy, Mounjaro, and Ozempic looks like in the real world.
10 min read
Next-GenPlain-English guide to next-gen weight loss drugs in late-stage trials: retatrutide, survodutide, cagrisema — what they are, how they work, and what the data shows.
11 min read