Free GLP-1 tool
Compounded Semaglutide Dose, Volume & Syringe Calculator
Convert mg, mL, concentration, and U-100 syringe units — it never chooses your dose.
Before You Use the Calculator: Understand mg, mL, Concentration, and Syringe Units
A stable educational-video source has not been approved yet. This slot is reserved for Dr. Patrick Oben’s explanation of mg, mL, concentration, and insulin-syringe units.
What this result means
Convert an already-prescribed dose into mL and U-100 syringe markings using your exact pharmacy concentration.
volume_mL = prescribed_dose_mg ÷ concentration_mg_per_mL. For a U-100 syringe, units = volume_mL × 100. There is no default concentration. Displayed syringe markings and the syringe visual remain gated until rounding and graduation mapping are clinically approved.
What this tool cannot tell you
- What dose you should take.
- Whether to increase, decrease, or titrate.
- A universal “units = mg” chart that ignores concentration.
Methodology & sources
volume_mL = prescribed_dose_mg ÷ concentration_mg_per_mL. For a U-100 syringe, units = volume_mL × 100. There is no default concentration. Displayed syringe markings and the syringe visual remain gated until rounding and graduation mapping are clinically approved.
- FDA alerts health care providers, compounders and patients of dosing errors associated with compounded injectable semaglutide products
U.S. Food and Drug Administration · Last verified 2026-09-16
Current FDA compounding alert for mg/mL/units confusion, concentration variability, and syringe-size counseling. This tool converts an already-prescribed dose; it does not select a dose.
- U-100 insulin syringe convention from the FDA compounded semaglutide dosing-errors alert
U.S. Food and Drug Administration · Last verified 2026-09-16
The same FDA compounding alert gives the U-100 example (1 mL syringe; 5 units = 0.05 mL), which is the basis for units = mL × 100. This is a syringe-scale convention, not a semaglutide dose chart and not a default concentration.
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