About PepFormula
A free, independent peptide reconstitution and dosage calculator built for researchers, clinicians, and biohackers who demand accuracy.
What PepFormula Is
PepFormula is a free, independent peptide reconstitution and dosage calculator. It was built for researchers, clinicians, and biohackers who need accurate, fast calculations — without signing up, paying, or sitting through an ad-laden experience.
Every calculation on this site happens entirely in your browser. No data is transmitted to any server. Your vial sizes, BAC water volumes, and dosage inputs never leave your device. We built it this way intentionally — privacy is not an afterthought here.
The tools cover the full workflow: reconstitution concentration, injection volume, syringe unit conversion, and peptide-specific dosing guides. Whether you're working with BPC-157, TB-500, Semaglutide, Tirzepatide, or a dozen other compounds, the math is the same — and PepFormula handles it correctly every time.
Who Built It
Kanika — Founder & Developer
Independent developer · Not a medical professional
PepFormula is built and maintained by Kanika, an independent developer. It is a tool project, not a clinic, pharmacy, or medical publisher. The calculators implement standard arithmetic — concentration, volume, and unit conversion — the same way any unit converter does. Every formula on this page is the complete methodology; there is nothing hidden behind the interface.
Our guides are written and maintained by Kanika and focus on the mechanics of reconstitution and measurement. Where we reference clinical information, we link to published sources such as FDA prescribing information and peer-reviewed trials, so you can verify claims yourself. We are not medical professionals, and we don't pretend to be — see the disclaimer below.
We correct calculation errors reported through the contact page, and we don't accept sponsored content or paid placements that influence calculator results.
Our Methodology
All calculations are based on standard pharmaceutical reconstitution protocols — the same formulas used by compounding pharmacies and published in clinical reference guides.
Concentration
Once a lyophilized peptide vial is reconstituted with bacteriostatic water (BAC water), the resulting concentration is calculated as:
Injection Volume
To draw the correct volume for a target dose, divide the desired dose by the concentration:
Syringe Units
For insulin syringes marked in units (U-100), the number of units to draw is:
These are the same formulas referenced in standard compounding pharmacy guides. No proprietary adjustments, no hidden rounding — just correct arithmetic applied consistently.
Editorial Standards
Every piece of content on PepFormula is reviewed for mathematical accuracy before publication. Calculator logic is verified against published reconstitution protocols and checked with multiple independent inputs to confirm consistent output.
- ✓ All formulas traced to published pharmaceutical or clinical references
- ✓ Calculator outputs manually verified against known-correct values before launch
- ✓ Guides cite published sources (FDA labels, peer-reviewed trials) wherever clinical claims are made
- ✓ Errors reported by users are investigated and corrected promptly
Medical Disclaimer
PepFormula is an informational tool only. Nothing on this site constitutes medical advice, and calculator results are mathematical outputs — not clinical recommendations. Always consult a licensed healthcare professional before reconstituting or administering any peptide or research compound. Users are solely responsible for verifying all results and complying with applicable laws in their jurisdiction.
Read our full Medical Disclaimer.
Last updated: September 2026