Multi-peptide blends.
Add unlimited peptides to a single volume and calculate each automatically for complex research.
4.8 · iOS & Android
PepCalc Peptide Calculator App
Fast, accurate peptide doses, without the hassle.
The peptide reconstitution calculator for iOS and Android - exact syringe units for any vial, water volume, and desired dose.
One-time purchase · No signup required · Private by design
How to calculate peptide reconstitution in 3 steps.
Stop the guesswork! PepCalc is the simplest way to get peptide reconstitution right. Instant per unit or tick mark results, saved protocols for repeatable calculations, multi-peptide blend support, and smart conversions.
- STEP 01
Enter peptide vial details, water volume, and syringe type.
Supports multi-peptide blends, U-100, U-40, or fully custom syringe types.
- STEP 02
Enter desired peptide amount.
Choose between micrograms (mcg), milligrams (mg), or grams (g).
- STEP 03
See instant peptide calculator results.
View the exact units and tick marks to draw, plus how many doses your vial holds.
Built for all peptide research use cases.
From initial reconstitution calculations to saved protocols you reuse every week - nothing to look up, nothing to re-type.
- Syringe presets - U-100, U-40, tuberculin
- Unlimited multi-peptide blends
- Water Solver for target draws
- mcg / mg / g smart conversion
- Saved protocols with notes
- Custom peptide names & colors
- Five color themes + dark mode
- Everything stays on your device
PepCalc - pro level peptide calculator features:
Water Solver wizard.
Enter a target draw amount and the Water Solver computes exactly how much water to add.
Preset or custom syringe types.
Choose 100-unit or 40-unit scales for fast setup, or use fully custom inputs for any volume.
Smart conversions.
Instantly switch between mcg, mg, and g without re-entering data.
Saved protocols.
Save favorite calculations with names and notes for fast recall. No more retyping.
Themes.
Multiple themes with light and dark mode support to suit everyone’s preferences.
Private by design.
No signup required. No ads. Your data remains on your device.
- No signup
- No ads
- On-device
“Even with a strong medical background, I find calculating doses for peptides tricky. This app is such a great idea and powerful tool!”
“I've been waiting for something like this for years. Having to do the math gets exhausting. This app just made my life so much easier. Thank you developers!”
“I honestly cannot say enough or thank you guys enough for this app! Litterallly a LIFE SAVER! Pepcalc makes everyone at ease. It is so easy to use once I showed my wife all the worry was gone of her maybe making a mistake!”
Peptide calculator questions, answered.
The answers people search for - on the page, where they belong.
- How do I calculate peptide reconstitution?
- Enter the peptide amount (mg), the bacteriostatic water you add (mL), and your desired dose. PepCalc returns the exact units or tick marks to draw on your syringe.
- Which syringes are supported?
- U-100 and U-40 insulin syringes with volumes set automatically, plus tuberculin (non-insulin) syringes with full control of the inputs.
- Can I mix multiple peptides in one vial?
- Yes - add unlimited peptides to a vial and PepCalc calculates each one’s amount per dose, color-coded.
- Does PepCalc work offline?
- Completely. Calculations run on your device, with no signup required and no data leaving your phone.
Get the exact draw, every time.
Download PepCalc for iOS or Android for easy and accurate peptide calculations.
Scan to download For research and educational purposes only. Not for medical use, human consumption, or clinical application. This tool does not provide medical advice or guidance on peptide use. All calculations should be independently verified. Consult a qualified healthcare professional before using any peptide. Results are provided as-is; use at your own risk.