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Peptide & GLP-1 calculators Get the math right.

Exact syringe units for peptide and GLP-1 vials, from formulas we publish in full. A private tracker keeps every dose, on your phone only.

  • Free to use
  • No sign-up
  • No vendor links

Reconstitution

Vial to syringe units

Example
Vial
10mg
Water
2mL
Dose
2.5mg
Syringe100-unit (1 mL) insulin syringe

Draw to

50units0.5 mL

10203040506070809010050 units
Strength
5 mg/mL
Each dose
0.5 mL
Doses per vial
4

This is arithmetic, not medical advice. Confirm with your prescriber or pharmacist.

Use your own numbers

Vial calculators

All vial sizes

Pre-filled with the vial size. You add the water and the dose your prescriber gave you.

Built to be checked

A reference, not a seller. Here is what that means in practice.

  • Formulas published and tested

    Every result is plain arithmetic. We write the formulas out in full and check them with automated tests.

    How our calculator works
  • Regulatory status on every compound

    Each compound page states its current US status, the date we last checked it, and the source.

    Browse compounds
  • No vendors, no affiliate peptide links

    We don’t sell, source or link to peptides or bacteriostatic water. You won’t find discount codes here.

    About Peptinote
  • Medical review in progress

    Pages will name a licensed reviewer once one has signed off. Until then they say so, and we never show a name you can’t verify.

    Editorial policy

Guides

Plain-English explanations with sources, written for the moment the vial is in your hand.

Free, with Pro when you want more

Your private dose tracker

Save each vial once, log doses as you take them, and see what’s left before you run out. Your log is stored only on your device. Peptinote never receives it.

How we handle health data: Consumer health data policy

  • Your vials, with the math already done
  • Doses left, next dose and discard date at a glance
  • Where you injected, on a body map
  • A clean report to show your prescriber (Pro)

Free vial-math cheat sheet

Get the vial-math cheat sheet

One printable page: the formulas, how to read a U-100 syringe and worked examples. Free.