# Peptide Pilot > Free peptide calculators, reference pages, and a private iPhone logger for doses, weight, and meals. Run the reconstitution and dose math in seconds, then track every vial. Peptide Pilot is an educational and self-tracking tool. It does not provide medical advice. Calculators cover reconstitution, mg-to-units conversion, dose volume, and vial duration for the peptides most commonly discussed in research and personal-logging communities (semaglutide, tirzepatide, retatrutide, BPC-157, and 20+ others). Reference pages summarize half-life, typical cadence, and reconstitution math per peptide. Plain-English guides explain the underlying concepts. ## Calculators - [All calculators](/calculators): Index of every calculator and per-peptide variant. - [Reconstitution calculator](/calculators/reconstitution): Work out bacteriostatic water volume and concentration per vial. - [mg to units calculator](/calculators/mg-to-units): Convert a mg dose to insulin-syringe units at a given concentration. - [Dose volume calculator](/calculators/dose): Compute injection volume from dose, vial strength, and diluent. - [Vial duration calculator](/calculators/vial-duration): Estimate how long a vial lasts at a given dose cadence. ## Reference pages - [All peptides](/peptides): Index of every peptide reference page. - [Semaglutide](/peptides/semaglutide): Long-acting GLP-1, ~7-day half-life, weekly cadence. - [Tirzepatide](/peptides/tirzepatide): Dual GIP/GLP-1, weekly cadence. - [Retatrutide](/peptides/retatrutide): Triple agonist, weekly cadence. - [BPC-157](/peptides/bpc-157): Short-peptide, commonly logged daily. ## Comparisons - [All comparisons](/compare): Side-by-side peptide pair pages (half-life, cadence, reconstitution math). ## Guides - [How to reconstitute peptides](/guides/how-to-reconstitute-peptides): Step-by-step reconstitution walkthrough. - [mg vs units explained](/guides/mg-vs-units-explained): Why insulin-syringe units aren't milligrams. - [Syringe types explained](/guides/syringe-types-explained): U-100 vs U-40 vs tuberculin, and when each is used. - [Peptide tracking app](/guides/peptide-tracking-app): How a dedicated logger compares to a notes app or spreadsheet. ## Optional - [Help](/help): Common questions about the app and calculators. - [Health disclaimer](/legal/health-disclaimer): Scope, limits, and intended use. - [Terms](/legal/terms) - [Privacy](/legal/privacy)