Peptide Tools
Free, browser-based tools for research-peptide arithmetic. They convert units and do the maths on the numbers you enter; nothing you type is stored or sent anywhere. For laboratory research use only, not medical advice.
Peptide Calculator (Reconstitution)
Turn vial size, BAC water volume and a target amount into concentration, draw volume, syringe units (U-100 or U-40), mcg per 0.1 mL and amounts per vial. Includes a reconstitution chart and a syringe gauge.
Open calculator →BAC Water Calculator
Work backwards: find how much bacteriostatic water to add for a target concentration, mcg per 0.1 mL or syringe reading.
Open calculator →Peptide Unit Converter
Convert mg, mcg and ng, turn mL into U-100 or U-40 syringe units, and convert IU to mass with a substance-specific factor.
Open converter →COA Checklist
A printable 12-point checklist for reading a certificate of analysis: lot match, lab verification, HPLC, mass spec and red flags.
Open checklist →Vendor Testing Tracker
Which vendors name their lab, publish lot-level COAs and have independent Finnrick data. Re-checked monthly.
Open tracker →
Checking a vendor before you buy? See our best peptide vendors in the USA and how to read a peptide COA.