Semaglutide Dosage in Units
Convert mg/mL to Syringe Units
Use this semaglutide dose calculator to convert mg and vial concentration (mg/mL or mg/0.5 mL) into syringe units for Ozempic or Wegovy.
Semaglutide Dosage Calculator
Finding Your Semaglutide Concentration
Look for a number followed by mg/mL or mg/0.5 mL on your vial. Enter the value exactly as shown, or select the appropriate unit option so the calculator can convert it correctly.
Example
- If your vial says 10 mg/mL, then 1 mL (100 units) contains 10 mg of semaglutide.
- If your prescribed dose is 2.5 mg, you would draw 0.25 mL, which equals 25 units.
Understanding Volume, Concentration and Units
Dosage (mg)
Dosage is the amount of semaglutide you plan to take, measured in milligrams (mg). Prescriptions are written in mg, which is not the same as the volume you inject.
Volume (mL)
Volume is the amount of liquid you draw into the syringe, measured in milliliters (mL). The volume needed depends on the concentration of the medication.
Concentration (mg/mL or mg/0.5 mL)
Concentration describes how much semaglutide is present in a given volume of liquid.
- A vial labeled 10 mg/mL contains 10 mg of medication in each 1 mL.
- A vial labeled 5 mg/0.5 mL contains 5 mg in each 0.5 mL.
The calculator supports both formats and converts automatically.
Syringe Units
Syringe units are another way to measure volume on insulin syringes. On a standard U-100 syringe:
- 1 mL = 100 units
- 0.5 mL = 50 units
Frequently Asked Questions
Common questions about semaglutide dosing
What is a semaglutide dose calculator?
A semaglutide dose calculator converts a prescribed dose in milligrams (mg) and a vial concentration into the corresponding syringe units.
Does this work for Ozempic and Wegovy?
Yes. The calculator supports semaglutide dosing formats used for Ozempic, Wegovy, and compounded semaglutide.
Can I use this with compounded semaglutide?
Yes, as long as you know the concentration listed on your vial.
What syringe does this calculator assume?
The calculator assumes a standard U-100 insulin syringe, where 100 units equal 1 mL.
Does this replace medical advice?
No. This calculator is for conversion purposes only. Always follow your prescriber's instructions and verify vial concentration before injecting.
Data Sources
This calculator uses standard pharmaceutical dosing formulas and FDA-approved references:
- FDA Ozempic® Prescribing Information — Official FDA label (NDA 209637) - semaglutide dosing and pharmacology
- Wegovy® Dosing Guide — Novo Nordisk official dose-escalation schedule
- U-100 Syringe Standard — FDA Insulin Delivery Device Guidance (100 units = 1 mL)
- Volume Calculation Formula — Standard pharmaceutical formula: Units = (Dose mg ÷ Concentration mg/mL) × 100
⚠️ Important Medical Disclaimer
This calculator is for informational purposes only and does not constitute medical advice. Always consult with your healthcare provider before making any changes to your medication dosing.
Dosage calculations should be verified by a healthcare professional. Glapp and its contributors assume no liability for medication dosing errors or adverse events.
Off-Label Use Notice: Split dosing features represent off-label use not approved by the FDA. Discuss with your prescriber before implementing.

