Free tools
Peptide tools
Calculators that show their work. All free, no sign-up.
Reconstitution calculator
Dose to mL and syringe units, step by step.
Vial planner
How many vials do you need for the weeks ahead? Accounts for your label's discard date.
Cost per dose
Compare prices fairly by turning a vial price into cost per dose, per month and per year.
Unit converter
Convert mg to mcg and mL to syringe units in both directions.
Titration timeline
Turn the step-up plan from your prescription into calendar dates.
Semaglutide vs. tirzepatide
Side-by-side comparison of the two most-prescribed GLP-1s.