Open Peptide Calculator is an independent educational website. We build free, fast calculators and plain-language reference pages about the arithmetic of reconstituting peptides (mg, mcg, mL and U-100 syringe units) and the regulatory status and published human evidence for commonly discussed peptides.
What we do
- Calculators that only do arithmetic. Our tools turn vial strength, liquid volume and an amount you enter into U-100 syringe units, and a peptide sequence into a molecular weight. They never suggest an amount.
- Open formulas. Every formula is printed next to the tool that uses it, and the calculator code is published on the how-to and formulas page.
- Regulatory status with sources. Each peptide page reports FDA approval, compounding status and the WADA listing from FDA, HHS, WADA and trial records, with dates.
- No selling. We do not sell peptides, water or syringes, we do not link to sellers, and we accept no payment for placements.
- No selling. We do not sell products, we do not link to sellers, and we do not accept payment for reviews or placements.
Who we are
Open Peptide Calculator is run by a small independent editorial team based in Türkiye. We are not affiliated with any drug manufacturer, compounding pharmacy, clinic, peptide seller, regulator or anti-doping organization.
How the site is funded
The site shows advertising served by Google AdSense. Advertisers do not influence what we write, and ads are clearly separated from our content.
Read our editorial policy, our medical disclaimer and our privacy policy. To reach us, use the contact page.