Peptide Calculator

Semaglutide titration schedule

The whole ladder, converted into the exact number of units to draw at every stage. Change the vial or the water and it recalculates.

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ReviewedDose ranges and half-life figures last checked 29 August 2026.

The schedule

StageWeekly doseDrawU-100 unitsVials used by end
Weeks 1–40.25 mg0.1 mL10 units0.2
Weeks 5–80.5 mg0.2 mL20 units0.6
Weeks 9–121 mg0.4 mL40 units1.4
Weeks 13–161.7 mg0.68 mL68 units2.8
Weeks 17–202.4 mg0.96 mL96 units4.7

Based on a 5 mg vial with 2 mL of bacteriostatic water (2.5 mg/mL) on a U-100 syringe, stepping every 4 weeks. Change any of that and the units change, so run your own numbers in the calculator above.

How to read it

Semaglutide has a licensed ladder: 0.25 mg weekly for four weeks, then 0.5 mg, 1.0 mg, 1.7 mg and 2.4 mg, each held for four weeks before the next step. As with tirzepatide, the first rung is a starting dose for tolerance rather than a maintenance dose.

The doses are small enough that the water volume matters more here than for any other compound. A 5 mg vial in 2 mL puts 0.25 mg at 10 units. The same vial in 1 mL puts it at 5 units, where a one-unit misread is a 20 percent dosing error.

A titration ladder is a maximum pace, not a target. Holding at a lower dose for longer is a normal outcome, not a failure.
Free: The Protocol Pack, 25 printable pages. Including the part no other site writes down: what to do when you have already got it wrong. Wrong water volume, shook the vial, left it out overnight, drew the wrong units. Plus dosing cards for twelve compounds, titration planners and a vial log. Get it free.

Calculators by compound

RetatrutideVial, water and weekly dose to syringe unitsTirzepatideThe 2.5 to 15 mg ladder, convertedSemaglutideThe 0.25 to 2.4 mg ladder, convertedBPC-157mcg doses from a 5 or 10 mg vialReconstitutionHow much water to add, and why it mattersDosing chartsPrintable unit tables for every compoundTitration schedulesFull ladders with units at every stepReading a syringeU-100 vs U-40, and the 2.5x errorHow much water?Pick a volume that lands where you can read it

Common questions

What is the standard semaglutide titration schedule?
0.25 mg once weekly for four weeks, then 0.5 mg, 1.0 mg, 1.7 mg and 2.4 mg, stepping every four weeks as tolerated.
How many units is 0.25 mg of semaglutide?
In a 5 mg vial with 2 mL of bacteriostatic water, which is 2.5 mg/mL, 0.25 mg is 0.1 mL, or 10 units on a U-100 syringe.
What if a step is intolerable?
The licensed guidance is to hold at the previous dose for longer rather than push through. The ladder is a maximum pace, not a schedule you owe anyone.
Read this before you use the numbers. This is a unit-conversion tool. It converts a vial strength and a volume of bacteriostatic water into a concentration, a draw volume and a mark on an insulin syringe. It does not tell you what to take, whether to take it, or whether a compound is safe for you. Most of the compounds listed here are sold for laboratory research use and are not approved for human use. Nothing on this site is medical advice. Dosing decisions belong with a licensed clinician who knows your history. Always confirm the strength printed on your own vial rather than trusting a preset.