Reconstitution Calculator

Calculate mg/mL concentration, IU conversions, reconstitution ratios and syringe units from the vial amount, diluent volume added and desired dose.

Reconstitution details
Selecting a peptide fills this automatically. You can still edit it.
Use the diluent specified for your product.
About device scales
U-100 syringes and pens use 100 units per mL. The 3 mL U-100 pen option represents a 300-unit cartridge with a 0–60 unit dose dial. U-40 syringes use 40 units per mL. Confirm the markings and instructions on your actual device.
Draw to
0units
0 mL on a U-100 syringe
Estimated doses in vial: —
U-100 syringe guideDraw to 0 units
Syringe draw guideA cartoon insulin syringe with liquid, rubber stopper and plastic plunger stem showing where to draw.0UNITS
Needle and zero are on the left. Read the dose at the needle-side edge of the black rubber stopper.
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Important
This calculator performs mathematical conversions only. Confirm the vial label, concentration, syringe type and intended dose before use. It does not provide medical advice or dosing recommendations.
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Build your print report.

Tick the calculations you want, choose a dose schedule for each, then print.

Print report setupSelect the calculations and set the dose schedule to include in your print report.
Backup & syncExport all saved calculations before clearing browser data, or move them between devices.

JSON can be imported back into PeppyCalc and safely merged with calculations already on this device. Markdown is a readable backup for your records.

Optional report details

These fields are optional and remain stored only on this device. Empty fields are omitted from the printed report.

Recommended accessories.

Useful storage, preparation and disposal products available from Amazon Australia.

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About PeppyCalc.

A focused calculator and accessories directory designed for quick access.

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PeppyCalc updates

Version history

Recent improvements and feature releases.

v201Navigation RefreshNew
  • Moved FAQ into the Guides dropdown menu.
  • Added the new PeppyHub dropdown containing Accessories, PeppyWiki and Communities.
  • Removed the introductory line from the Communities page for a cleaner layout.
v200Communities Page
  • Added a new Communities page featuring the supplied Reta Unfiltered image in a clickable card.
  • The community card opens the supplied Reta Unfiltered Skool referral link.
v199Version History Sync Fix
  • Centralised the visible release history so the root site and /app/ view always show the same release titles and notes.
  • Corrected the stale /app/ history that was pairing new version numbers with old release descriptions.
  • Release history now comes from the same central configuration as the current PeppyCalc version and displays only the current release plus the previous two.
Privacy

Saved calculations remain in your browser's local storage. PeppyCalc does not require an account or transmit calculation data to a server.

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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.

Disclaimer

PeppyCalc is a mathematical utility and does not diagnose, prescribe, recommend dosages, or replace advice from a qualified healthcare professional.

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