Free Peptide Calculators & Converters
Quick, focused peptide calculators and unit converters for when you need a single answer. Everything below is free, runs instantly in your browser, and explains the math in plain English. For research and educational use.
Skip the single calculators and start with the Plan Builder that walks you through everything step by step and gives you a complete, printable reconstitution plan.
The full calculator. Enter your compound, vial amount, how much you want to measure, and your syringe to get the BAC water amount, syringe units, and step-by-step instructions.
Best for: doing everything in one place.
Enter your vial amount and the amount you want to measure. We'll give you the water amount that makes the syringe math clean.
Best for: you have the vial and need the water amount.
Already mixed your vial? Enter the concentration and how much you're measuring to see the amount in mg and mcg.
Best for: checking a measurement from a mixed vial.
Tell us what you're running, how often, and for how long. We'll count the syringes, pads, and vials. Counts only, nothing for sale.
Best for: planning how much to source.
Convert between milliliters (mL) and U-100 insulin syringe units, either way, with a quick-reference table.
Best for: a fast mL ↔ units conversion.
Switch between milligrams and micrograms. Vial amounts are often in mg and measurements in mcg. This makes switching easy.
Best for: a quick unit conversion.
Want your amount to land on exact units? Pick the amount and the units you want to land on, and get the precise BAC water to add.
Best for: landing on a clean, readable syringe mark.
Generate printable vial labels with a QR code, showing the vial amount, concentration, the amount to measure, mix date, and discard date.
Best for: labeling a mixed vial.