Peptide Calculators

Reconstitution and dosing arithmetic, with every formula written out in full. Each calculator shows the working, a table of worked examples, and answers to the questions people ask most.

• Peptide Reconstitution Calculator

  Work out the concentration and syringe units after reconstituting a peptide vial. Enter vial strength, bacteriostatic water and dose to get the units to draw.

  units = (dose mg ÷ (vial mg ÷ BAC water mL)) × 100

• Peptide Dosage Calculator

  Convert a peptide dose in milligrams to syringe units at any concentration. Supports U-100, U-50 and U-40 insulin syringes.

  units = (dose mg ÷ concentration mg/mL) × syringe scale

• BAC Water Calculator

  See how the amount of bacteriostatic water changes your peptide concentration and the units you draw. Compare 1 mL, 2 mL, 3 mL and 5 mL side by side.

  concentration mg/mL = vial mg ÷ BAC water mL

• mg to Units Calculator

  Convert milligrams to syringe units using the mg/mL on your label, or calculate concentration from vial strength and water. Supports U-100, U-50 and U-40 scales.

  units = (mg ÷ mg per mL) × 100

Peptio for iOS & Android

Keep a record of every dose

Track one medication at a time, including a custom peptide. Log your doses and injection sites, set reminders, and look back at your history in Peptio.

Free to download. Optional paid features in the app.