Calculate, Blend, and Reconstitute Your Peptides

What is Peptide Calculator?

Peptide Calculator is an app that helps you accurately calculate peptide dosages, blend multiple peptides into a single syringe, and determine exactly how much bacteriostatic water to add when reconstituting.

Is my data private and secure?

Absolutely. All your data is stored locally on your device — it never touches our servers and is never shared with third parties. You have full control and can delete it at any time.

How does the dose calculator work?

Enter your peptide vial amount (mg), the bacteriostatic water you added (mL), your desired dose, and your syringe size. The app instantly shows you how many units or mL to draw, your concentration, and how many doses you'll get per vial.

What is the blend calculator?

The blend calculator lets you combine multiple peptides into a single syringe. Add each peptide with its vial amount and desired dose, set a shared water volume, and see a per-peptide breakdown of units to draw.

What is the reconstitution calculator?

It works in reverse — you enter your peptide amount, desired dose per injection, and how many units you want to draw, and it tells you exactly how much bacteriostatic water to add.

Is the app free?

The app is free to download and use. Free users have access to the core calculators with standard syringe sizes and up to 2 peptides per blend. Pro unlocks additional syringe sizes, unlimited blend peptides, and removes paywall interruptions.

What platforms is it available on?

Peptide Calculator is available on iOS and Android.

Does it support unit conversion?

Yes. The app supports automatic conversion between mcg and mg, and you can choose to display results in units or mL depending on your preference.

What's coming next?

We're building peptide tracking features — log your injections, track your cycles, and monitor your progress over time. Stay tuned for exciting updates.