# Peptides Calculator

> Peptides Calculator is a free iOS and Android app for calculating peptide dosages, reconstituting peptide vials with bacteriostatic water, tracking vial inventory, and visualizing half-life decay. Built for research peptide users.

## What this site provides

- Free **peptide dosage calculator** — reconstitute lyophilized peptides with BAC water and convert your target dose into syringe units on a U-100 insulin syringe.
- **100+ peptide library** with profiles for tirzepatide, semaglutide, retatrutide, BPC-157, TB-500, ipamorelin, CJC-1295, HGH (somatropin), melanotan-2, AOD-9604, MOTS-c, epithalon, sermorelin, kisspeptin, and many others. Each profile includes half-life, dosage, mechanism of action, benefits, and side effects.
- **Half-life calculator** — interactive decay curve for any peptide given a dosing schedule.
- **Side-by-side peptide comparison** — up to three peptides compared on half-life, dosage, benefits, side effects, and mechanism.
- **Native iOS and Android apps** with vial inventory tracking, dose reminders, Apple Watch support, AI-generated meal and exercise plans (Pro), and offline use.

## Key calculators

- /bac-water-calculator — BAC water (bacteriostatic water) mixing tool
- /peptide-reconstitution-calculator — generic peptide reconstitution tool
- /half-life — peptide half-life decay calculator (with per-peptide landing pages at /half-life/tirzepatide, /half-life/semaglutide, etc.)
- /compare — side-by-side peptide comparison (with per-pair pages at /compare/tirzepatide-vs-semaglutide, etc.)
- /stacks — peptide stack builder organized by goal

## Guides

- /how-to-reconstitute-peptides — eight-step reconstitution guide
- /peptides — peptide library index
- /changelog — full app release history
- /roadmap — what's being built next
- /best-peptide-calculator-app — feature comparison against PepCalc, Cellgenic, Simple Peptide Calculator

## What it is not

Peptides Calculator does not provide medical advice, diagnose conditions, or prescribe treatments. Information on the site is for organizational and educational use. Research peptides are not for human consumption.

## Contact

himanshu@batra.io