Free tool
Semaglutide
calculator.
Vial, water, dose — exact insulin syringe units for Semaglutide. Preloaded with the numbers people actually use.
Volume to draw
Concentration
Vial lasts
Dose exceeds this syringe — add less water or use a bigger syringe.
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The Reconstitution Card, free PDFDoses and units for eight peptides on one page
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Dosing in practice
Compounded semaglutide starts near 250 mcg once weekly and titrates monthly toward 1000 to 2400 mcg as tolerated. Brand pens are pre-dosed and need no math. Follow the pharmacy label.
This tool explains the math on your pharmacy label. It does not choose a dose — that decision belongs to your physician.
Common questions
How much is 0.25 mg of semaglutide in units?
With a 5 mg vial and 2 ml of water the concentration is 2500 mcg per ml, so 250 mcg is 0.1 ml — 10 units.
Why does the dose increase over time?
Titration reduces nausea. Physicians raise the weekly dose stepwise about once a month.
Does this apply to Ozempic or Wegovy pens?
No. Pens deliver a fixed dose per click and never require reconstitution.
Need the prescription first?
A licensed physician reviews your case online and a US pharmacy ships the protocol with dosing printed on the label.
Talk to a doctor