Peptide Calculator
Semaglutide calculator
Pre-filled with common Semaglutide vial sizes. Adjust any value to match your specific vial and dose.
About Semaglutide
Semaglutide is a GLP-1 receptor agonist originally developed by Novo Nordisk. It is FDA-approved for type 2 diabetes (Ozempic) and chronic weight management (Wegovy) and is among the most studied compounds in contemporary metabolic medicine. The calculator helps determine draw volume for a given dose — always follow your prescriber's instructions for dose and titration.
Common Semaglutide vial sizes
| Vial size | BAC water | Concentration |
|---|---|---|
| 5mg | 2mL | 2,500 mcg/mL |
| 5mg | 3mL | 1,667 mcg/mL |
| 10mg | 2mL | 5,000 mcg/mL |
| 10mg | 3mL | 3,333 mcg/mL |
Frequently asked questions
Why is refDoseMcg listed as null for semaglutide?
Semaglutide doses vary significantly by indication and are titrated over weeks. There is no single reference dose. Use the calculator with your prescribed dose and vial size.
What concentration does a 5mg semaglutide vial give with 2mL BAC water?
Reconstituting a 5mg vial with 2mL of BAC water gives a concentration of 2,500 mcg/mL. Use the calculator to find your exact draw volume based on your prescribed dose.
Is compounded semaglutide available in 2026?
FDA declared the semaglutide shortage resolved in March 2025. Following wind-down periods, compounded semaglutide is generally restricted. Patients should verify their provider's legal basis for any compounded formulation.