Built for Ozempic, Wegovy, Mounjaro & Zepbound

Calculate Safe Weekly Weight Loss on GLP-1 Without Losing Muscle

Get a personalized calorie target, high-protein macro plan, and 16-week projection — designed to protect lean mass while you lose fat.

Free · No signup required · Results in 30 seconds

Science-based formulas
Muscle-preservation focus
Doctor-recommended ranges

Lose fat. Keep muscle. Feel strong.

Most GLP-1 users lose 25–40% of their weight as muscle. We help you flip those numbers.

Hit the right protein target

GLP-1s reduce appetite — making protein the #1 lever for keeping muscle. We calculate yours from lean body mass.

See a realistic 16-week projection

Visualize your weight loss curve at a sustainable 0.5–1% per week — the rate doctors recommend.

Protect your metabolism

We set a calorie floor so you never under-eat. Less rebound, less muscle loss, better long-term results.

How it works

01

Enter your details

Age, height, weight, activity, and your GLP-1 medication.

02

Get your plan instantly

Personalized calories, protein target, and weekly loss rate.

03

Track and adjust

Use the projection to stay on track and protect lean mass.

Ready to lose fat — not muscle?

Get your personalized GLP-1 plan in under a minute. Free, no signup.

Calculate My Plan
Medical disclaimer: LeanLoss GLP-1 is an educational tool and is not a substitute for professional medical advice, diagnosis, or treatment. The calculations are estimates based on published formulas (Mifflin-St Jeor, ISSN protein guidelines). Always consult your physician before changing your diet, starting an exercise program, or modifying GLP-1 medication dosing.