Reviewed by the PeptideMind Team · Updated August 27, 2026
Semaglutide to Tirzepatide Conversion Calculator
This semaglutide to tirzepatide conversion calculator gives you a rough, estimated dose range in either direction. Free to use, no sign up needed. This is for learning only, not medical advice or a plan for switching drugs.
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Amount
mg
SemaglutideEstimated equivalent
mg
TirzepatideThis range lines up where each drug's dose lands on its own published weight loss study results, not a direct head to head comparison. It is a rough estimate for learning purposes only, not a switching plan.
This is an educational estimate, not medical advice. Never change or switch a dose without talking to your doctor first.
Semaglutide to Tirzepatide Dose Chart
Here's the estimated range for every standard semaglutide dose step.
| Semaglutide (mg) | Tirzepatide (mg) |
|---|---|
0.25 mg | 2.5 mg |
0.5 mg | 2.5 to 5 mg |
1 mg | 5 to 7.5 mg |
1.7 mg | 7.5 to 10 mg |
2.4 mg | 10 to 15 mg |
7.2 mg | 15 mg |
Ranges are rough estimates based on published study comparisons, not a switching plan.
Tirzepatide to Semaglutide Dose Chart
Here's the estimated range for every standard tirzepatide dose step.
| Tirzepatide (mg) | Semaglutide (mg) |
|---|---|
2.5 mg | 0.25 to 0.5 mg |
5 mg | 0.5 to 1 mg |
7.5 mg | 1 to 1.7 mg |
10 mg | 1.7 to 2.4 mg |
12.5 mg | 2.4 mg |
15 mg | 2.4 to 7.2 mg |
Ranges are rough estimates based on published study comparisons, not a switching plan.
How the conversion calculator works
Every result comes from three simple choices: which direction you're converting, your current dose, and reading back a range, not a single number. For learning purposes only.
Type in your current dose
Enter the dose you're already on in the amount box. The drug shown next to it, semaglutide or tirzepatide, tells the calculator what that number means.
Use the swap button to change direction
Tap the swap button to flip which drug you're converting from and to.
Read your estimated range
The calculator shows a rough range for the other drug, not a single number. Ranges are wider on purpose, since there's no exact match between these two drugs.
How Dose Conversion Estimates Work
A semaglutide to tirzepatide conversion chart can only ever be a rough estimate. Here's what's really behind the numbers.
Two different drugs, not a straight swap
Semaglutide and tirzepatide work on the body in different ways. There is no exact math that turns one into the other, so any semaglutide to tirzepatide conversion chart you find online is only a rough estimate.
The answer is a range, not one number
This tool never gives you a single exact number. It gives a range instead, since that's a more honest picture of what's actually known about how these two drugs compare.
Based on published research, not guesswork
The ranges here come from lining up where each drug's dose sits on its own published weight loss study results. It's still an estimate, not a lab measured equivalent.
Switching From Semaglutide to Tirzepatide
Thinking about switching, or just trying to understand the difference? Here's what matters most.
Talk to your doctor before switching
Only your doctor can decide if switching makes sense for you, and what dose to start on. This calculator is a learning tool, not a switching plan.
Brand names can be confusing
Semaglutide is sold as Ozempic and Wegovy. Tirzepatide is sold as Mounjaro and Zepbound. This tool works the same way no matter which brand name you're used to.
New side effects are possible
Switching to a new drug can come with new or different side effects, even at a dose your doctor considers similar. Your doctor can help you know what to expect.
Frequently Asked Conversion Calculator Questions
Simple answers on dose ranges, switching, and brand names. For learning purposes only, not medical advice.
Talking to Your Doctor About Switching
This calculator is a starting point for a conversation, not a replacement for one.
Bring your result to the appointment
Print your result and bring it with you. It gives your doctor a starting point for the conversation, not a final answer.
Everyone responds differently
Body weight, how long you've been on a drug, and any side effects you've had all affect what dose actually works for you. A chart can't account for all of that.
This tool does not replace your prescriber
Only your doctor can prescribe a new dose or a new drug. Use this tool to learn what a rough range might look like, then bring your questions to them.
Calculate peptide dosages
Reference our peptide quantity, blend, and accumulation calculators for laboratory purposes. Enter vial size, reconstitution volume, and target research quantity to calculate exact draw volumes instantly. All calculators are for research use only and do not constitute dosing or administration guidance.
