Peptide Calculator
done right.
Reconstitute, dose, and track peptides with confidence — BAC water math, insulin-syringe units, vial guides, and a private daily tracker.
Everything you need to dose safely.
Enter vial strength, BAC water added, and target dose. Get exact syringe units in seconds.
Pop-top with the triangle indent or twist cap? Step-by-step photos and the right tool for each.
Lyophilized vs reconstituted, fridge vs freezer, light exposure, and travel rules.
Log every shot. Get a visual streak so you never double-dose or skip a day. Lives on your device.
Common questions
Divide the desired dose (mg or mcg) by the concentration (mg/mL) after reconstitution, then convert mL to insulin syringe units (1 mL = 100 units). The calculator does this for you.
Most users add 1–3 mL of bacteriostatic water per vial. More water means lower concentration and more units per dose — easier to measure for small doses.
Most reconstituted peptides remain stable refrigerated (2–8 °C / 36–46 °F) for 28–60 days. See the storage page for specifics.
If the cap has a small triangle indent, it's a flip-off — lift that tab and pop the metal disk off. Twist-off caps unscrew by hand.