Free peptide and GLP-1 tools
Calculators and reference tables that do one job each and ask for nothing. No sign-up, no email capture, no vendor links.
Embeddable · no sign-up
Peptide reconstitution calculator
Concentration, volume to draw and U-100 insulin units for any vial and water volume, plus a full reconstitution chart.
Per compound
BPC-157 dosage calculator
Preset to BPC-157 vial sizes, with what 1ml, 2ml and 3ml of water do to the units figure.
Per compound
TB-500 dosage calculator
Preset to TB-500, with the mg and mcg scales shown together — the unit convention that causes most errors here.
Per compound
BPC-157 + TB-500 blend calculator
One volume, two concentrations: how a blended vial fixes the ratio and what that means for the arithmetic.
Per compound
Sermorelin reconstitution calculator
Preset to sermorelin, including the 9mg and 15mg vials that do not divide into round unit figures.
Per compoundUS only
Semaglutide reconstitution calculator
For compounded vials dispensed on prescription by a US 503A pharmacy. Prepare exactly as your pharmacy instructs.
Per compoundUS only
Tirzepatide reconstitution calculator
For compounded vials dispensed on prescription by a US 503A pharmacy. Prepare exactly as your pharmacy instructs.
Before you use these
This tool performs arithmetic only. It does not recommend a dose, a frequency, a duration or a supplier. Many peptides discussed online are not approved by the FDA for the uses people describe. Compounded medicines are supplied on prescription and should be prepared exactly as your pharmacy instructs. Talk to a prescriber or pharmacist before preparing or administering anything.