Reconstitution Calculator
Calculate mg/mL concentration, IU conversions, reconstitution ratios and syringe units from the vial amount, diluent volume added and desired dose.
Enter the amount of each peptide in the vial. Amounts can be in mg or mcg; the breakdown is shown in mg.
Enter a combo name, 2–4 ingredient amounts, diluent volume and a target peptide dose to calculate the draw.
Math only. This does not check whether ingredients can safely be mixed or provide a dose recommendation.
Enter a weekly total above.
About device scales
Focus on the dial
This pen dials your dose — do not draw with a syringe.
Read the number beside the fixed arrow.
1-unit increments on this reference pen.
Turn the dial until your number lines up with the arrow.
If your product instructions allow a more concentrated reconstitution, you can use less diluent and recalculate.
PeppyCalc will not change the value automatically.If you find PeppyCalc helpful, please consider supporting continued development and hosting costs.

USDC
Scan the QR code or copy the address below to donate USDC.
Build your print report.
Tick the calculations you want, choose a dose schedule for each, then print.
JSON can be imported back into PeppyCalc and safely merged with calculations already on this device. Markdown is a readable backup for your records.
Recommended accessories.
Useful storage, preparation and disposal products available from Amazon Australia.
About PeppyCalc.
A focused calculator and accessories directory designed for quick access.
Visual theme
Choose the classic PeppyCalc look or add a richer luminous background and glass-style effects.
Version history
Recent improvements and feature releases.
v239Printed Pen Graphic FixNew
- Kept the fixed A4 PDF design and QR footer; added continuation pages for long report details and notes.
- Wrapped combo ingredient text and restored translated report labels and optional clinic logos.
- Protected conversion tools against overflow and underflow, with readable scientific notation for very small values.
- Added a versioned offline calculator and report cache, and clearer accessible combo controls.
v237Netlify Deployment Fix
- Aligned asset version references across all pages to prevent duplicate deletion by the Hashfiles plugin.
- Verified the Hashfiles plugin completes successfully while retaining the v236 fixes.
v236Stress-test Hardening
- Recovered safely from malformed saved data and rejected invalid imported calculations.
- Blocked numeric overflow and results below display precision; recalculated imported outputs.
- Added report device-limit warnings and corrected multi-line title alignment.
Saved calculations remain in your browser's local storage. PeppyCalc does not require an account or transmit calculation data to a server.
As an Amazon Associate I earn from qualifying purchases. Amazon links may contain the tracking ID peppycalc-22. PeppyCalc may also receive referral benefits when users sign up for Obscura VPN or purchase through the Oura Ring referral link.
PeppyCalc is a mathematical utility and does not diagnose, prescribe, recommend dosages, or replace advice from a qualified healthcare professional.
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