Free tool · Measurement
Compounded Semaglutide Dose, Volume & Syringe Calculator
Turn a dose you were already given into a volume. This tool never chooses the dose.
Use this toolBefore you calculate
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.
How this was calculated
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.
Important limitations
- What dose you should take.
- Whether to increase, decrease, or titrate.
- A universal “units = mg” chart that ignores concentration.
Research & sources
- 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.
Related WellForm MD resources
Need individualized guidance?
These tools are free public education. WellForm MD also provides physician-led medical weight-loss care when you want a plan that belongs to you.