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Peptide and GLP-1 dosing, worked out for you.
Free calculators and plain-English guides for GLP-1 medicines and peptides. Every number is checked against the label or study it comes from.
Common: tirzepatide units · bac water for 5 mg · how to reconstitute · 50 units in mL
New to GLP-1s or peptides?Pick pen, vial, tablet or peptide, and see where to begin.[01] Quick tools
What do you need to work out?
- Check a missed doseTake it or skip it, by your label's rule
- Plan my dose scheduleGLP-1 label steps as dates, add to calendar
- Mix a new vialVial mg + water + dose → the line to fill to
- Turn units into mg or mcgYou drew 15 units: how much is that?
- Read an insulin syringeUnits to mL on 0.3, 0.5 and 1 mL syringes
- Choose how much bac water to addSo your dose lands on a round line
- See when it's out of your systemFrom the last dose, using the label half-life
- Dose from a blend vialBPC-157 + TB-500 and other combos
[02] By compound
Look up a compound
[03] How we work
How we work
- Math shownEvery result has the working underneath.
- Sources linkedDoses and facts link to labels and studies.
- No dose adviceWe do the math. Your prescriber decides the dose.
- Nothing to sellNo ads, no vendors, no sign-up needed.
Read our editorial policy and how we check the math.
[04] Guides
Popular guides
- Tirzepatide dosage chart: mg, mL and unitsPrescriptions say mg and syringes say units. This chart lines up each Mounjaro and Zepbound label dose with its mL and U-100 units.8 min
- How to reconstitute peptidesMixing (reconstituting) means adding bacteriostatic (bac) water to the freeze-dried powder in your vial so you can measure out doses. How much water you add, and how you add it, sets every dose that follows.8 min
- Missed a GLP-1 dose? The rule for each medicineHow late is too late depends on your medicine. Each US label sets its own window, and a few UK rules differ.7 min
- Semaglutide dosage chart: mg, mL and unitsPens give you a set dose in mg. If your semaglutide comes from a vial, each label dose also has to become mL and syringe units.9 min
- How much bac water to add to a peptide vialThere's no single right amount. The water sets how much peptide each unit on your syringe holds, so choose an amount that puts your dose on a line you can read.5 min
- How long do reconstituted peptides last?Nobody has published tested numbers for research peptides once they're mixed. Approved peptides and GLP-1 pens do have exact label limits, and they vary a lot from product to product.8 min
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