GLP-1 Weight Loss Calculator: Estimate Your Results
Calculate your expected weight loss on GLP-1 medications based on starting weight, medication choice, and timeline.
Get compounded GLP-1 medication prescribed online
Affordable, doctor-backed access to compounded semaglutide and tirzepatide. Complete a free online consultation with a US-licensed provider. If approved, medication is shipped to your door in 3-5 business days.
See if I qualify — Free consultationAvailable online · Shipped to your door anywhere in the US
Paid partnership · Prescription product requiring a physician consultation · Not everyone qualifies · Results vary
Available online. Shipped directly to your door anywhere in the US.
Key Takeaways
- Tirzepatide (Zepbound/Mounjaro): 22.5% average weight loss over 72 weeks — most effective
- Semaglutide (Wegovy): 15% over 68 weeks; Ozempic: 14% over 68 weeks
- For a 200 lb person: 45 lbs (tirzepatide), 30 lbs (Wegovy), 28 lbs (Ozempic) at max timeline
- At 3 months: ~8% (tirzepatide), ~6% (Wegovy), ~5% (Ozempic) of starting weight
- 10-15% of people are 'super responders'; 10-15% lose less than average
GLP-1 weight loss percentage chart
Use this chart to estimate your weight loss. Find your starting weight and timeline, then multiply by the percentage for your medication.
| Timeline | Zepbound/Mounjaro | Wegovy | Ozempic |
|---|---|---|---|
| 1 month (4 weeks) | 2-3% | 2-3% | 1-2% |
| 2 months (8 weeks) | 5% | 5% | 3% |
| 3 months (12 weeks) | 8% | 6% | 5% |
| 6 months (26 weeks) | 15% | 10% | 8% |
| 1 year (52 weeks) | 20% | 13% | 12% |
| 18 months (72 weeks) | 22.5% | 15%* | 14%* |
* Wegovy and Ozempic trial data is at 68 weeks; 72-week figures are extrapolated.
Example calculations
200 lb person on Zepbound for 6 months
200 lbs x 15% = 30 lbs lost (new weight: 170 lbs)
250 lb person on Wegovy for 1 year
250 lbs x 13% = 32.5 lbs lost (new weight: 217.5 lbs)
180 lb person on Ozempic for 6 months
180 lbs x 8% = 14.4 lbs lost (new weight: 165.6 lbs)
300 lb person on Mounjaro for 18 months
300 lbs x 22.5% = 67.5 lbs lost (new weight: 232.5 lbs)
Ready to start losing? Get your GLP-1 from $147/month
Compounded semaglutide & tirzepatide through licensed US telehealth. No insurance needed.
See if I qualify — Free quizFrom $147/month · No insurance needed · Ships nationwide in 3-5 days · Paid partnership · Results vary
How to use this calculator
- Find your starting weight in the left column.
- Choose your medication — Zepbound/Mounjaro (most effective), Wegovy, or Ozempic.
- Choose your timeline — 1, 2, 3, 6, 12, or 18 months.
- Multiply your weight by the percentage to estimate weight lost.
- Subtract from your starting weight to get your estimated end weight.
Remember: These are clinical trial averages. Individual results vary based on diet, exercise, dose, sleep, genetics, and medication adherence. About 10-15% of people lose more than average ("super responders") and 10-15% lose less.
Factors that affect your results
- Dose: Reaching the target dose (15mg tirzepatide, 2.4mg semaglutide) is critical for maximum results.
- Diet: High-protein, calorie-controlled diet can boost results by 30-50%.
- Exercise: 150+ min/week of cardio + strength training significantly improves outcomes.
- Sleep: 7-9 hours supports hormone balance and weight loss.
- Consistency: Weekly injections as prescribed, no missed doses.
- Starting weight: Higher starting weight generally means more total pounds lost.
Frequently asked questions
How much weight will I lose on a GLP-1 medication?
Average: Zepbound/Mounjaro 22.5% over 72 weeks, Wegovy 15% over 68 weeks, Ozempic 14% over 68 weeks. For a 200 lb person: 45 lbs, 30 lbs, 28 lbs. Individual results vary.
How is GLP-1 weight loss calculated?
Weight loss is calculated as a percentage of starting body weight. 15% loss for 200 lbs = 30 lbs (200 x 0.15). Clinical trial averages provide the percentage, but individual results vary.
How much weight can I lose on GLP-1 in 3 months?
At 3 months: ~8% on Zepbound/Mounjaro, ~6% on Wegovy, ~5% on Ozempic. For 200 lbs: 16 lbs, 12 lbs, 10 lbs respectively.
Does everyone lose the same amount on GLP-1s?
No. About 10-15% are 'super responders' who lose more than average, while 10-15% lose less. Factors: starting weight, dose, diet, exercise, sleep, genetics, adherence.
Which GLP-1 produces the most weight loss?
Tirzepatide (Zepbound/Mounjaro) at 22.5% over 72 weeks, vs semaglutide (Wegovy) at 15%. Tirzepatide is a dual GIP/GLP-1 agonist, making it more effective.
Conclusion
Use the percentage chart above to estimate your weight loss based on your starting weight, medication choice, and timeline. Remember that these are averages — your individual results may be higher or lower. The best way to maximize your results is to follow the titration schedule, eat a high-protein diet, exercise regularly, and stay consistent with your weekly injections.
Related guides
Doctor-backed GLP-1 weight loss from $147/month
Compounded semaglutide & tirzepatide. Online consultation with a US-licensed provider. No insurance needed.
Paid partnership · Prescription product · Not everyone qualifies · Results vary
Real patients. Real results.
Join 50,000+ patients who transformed their lives with GLP-1 medications
"I tried everything — keto, intermittent fasting, gym memberships. Nothing worked long-term. GLP-1 changed everything. I lost 47 pounds in 8 months and finally feel like myself again. The online process was so easy — I had my prescription in 2 days."
Jessica M., 38
Texas
-47 lbs
in 8 months
Compounded semaglutide
"At 52, my doctor said I was heading toward diabetes. I started tirzepatide through a telehealth program and lost 62 pounds. My A1C is back to normal, my blood pressure dropped, and I'm off two medications. Wish I'd done this years ago."
David R., 52
Florida
-62 lbs
in 11 months
Tirzepatide (Zepbound)
"I was skeptical about doing this online, but the whole process was professional and easy. My provider answered all my questions, and the medication arrived in 4 days. I've lost 38 pounds and finally have energy to play with my kids again."
Aisha K., 34
California
-38 lbs
in 6 months
Compounded semaglutide
Results vary. These testimonials reflect individual experiences and are not typical. Weight loss depends on diet, activity, and adherence to medication.
How it works — 3 simple steps
Take the 60-second quiz
Answer a few questions about your health, weight goals, and medical history. It's free and confidential.
1 min
Meet your US-licensed provider
A board-certified clinician reviews your profile and prescribes the right GLP-1 medication for you — entirely online.
24-48 hrs
Get medication shipped to your door
Your prescription is filled by a US pharmacy and delivered in discreet packaging in 3-5 business days.
3-5 days
Get GLP-1 savings alerts & weekly tips
Join 50,000+ readers. Price drops, new coupons, and expert weight-loss advice — delivered weekly. Unsubscribe anytime.
Free. No spam. Unsubscribe anytime.