Peptide Calculator

Reconstitution dosing for any peptide. Tap a preset or enter custom values.

Quick presets

mg
mL

Enter values above or tap a preset

1

Vial size

The mg printed on your vial label

2

Add water

How much bac water you're adding

3

Your dose

Desired mg or mcg per administration

The formula

units = (dose ÷ (vial × 1000 ÷ water)) × 100

Based on a standard 100-unit (1 mL) insulin syringe. 1 unit = 0.01 mL = 10 µL.

Disclaimer: This calculator is for educational purposes only. Not medical advice. Always double-check calculations and consult a healthcare professional. peptides.fyi is not responsible for errors or misuse.