PepsCalculator
⚗
Peps Calculator
Peptide Dosage & Reconstitution
1
Select your peptide
Tap to choose from the list
2
What size is your syringe?
All insulin syringes are U-100 (100 units = 1 mL)
0.3 mL 30 units max
0.5 mL 50 units max
1.0 mL 100 units max
3
How much peptide is in your vial?
Check the label on your peptide vial
4
What is your dose per injection?
Select or enter the amount you want per injection
Unit:
mcg
⚠ Please select your syringe size, vial amount, and dose before calculating.
Step 1 of 2 — Reconstitute
For a dose of —, add this much BAC water:
— mL
—
Step 2 of 2 — Draw Your Dose
Then pull the syringe to:
— units
⚠ Your dose exceeds this syringe's capacity. Switch to a larger syringe or use less BAC water to increase concentration.
Concentration
—
per mL
Doses Per Vial
—
at this dose
⚕ Medical Disclaimer: PepsCalculator is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before using any peptide compound. Never self-medicate.
Frequently Asked Questions

This tool helps you set up your peptide vial so your dose is easy to measure on your syringe. You select your vial size and intended dose, and the calculator tells you:

  • How much water to add
  • How much to draw on your syringe

You only need:

  • The amount in your vial (mg or mcg)
  • Your intended dose (based on your protocol)
  • A standard insulin syringe (1 mL, 0.5 mL, or 0.3 mL)

You do NOT need to know how much water to add. The calculator handles that for you.

No. The calculator automatically determines how much water to add so your dose lands on a clean, easy-to-measure number on your syringe.

It's optimized for simplicity. Instead of giving you uneven values like 13.7 units, it aligns your dose with clean numbers like 10 units or 20 units. This makes dosing more consistent and reduces mistakes.

This is how much you should pull on your insulin syringe. Example: if it says "Draw to 10 units," you fill your syringe to the 10 mark.

Choose the syringe you're using:

  • 1 mL (100 units)
  • 0.5 mL (50 units)
  • 0.3 mL (30 units)

The calculator adjusts everything based on your selection.

Yes. By default, the calculator selects the best dilution for simple dosing. If you prefer a specific setup, you can switch to manual and enter your own water amount.

The calculator will update both the recommended water amount and the syringe draw. Each dose has its own optimal setup.

You can switch between mg and mcg using the toggle in Step 4.

Important: 1 mg = 1,000 mcg. Make sure your dose matches the protocol you're following.

Yes. The calculator uses the same math for all peptides. Your dose should always follow the protocol you're using — this tool does not provide dosing recommendations.

Two main ones:

  • Using a bad dilution that leads to confusing syringe values
  • Mixing up mg and mcg

Both can lead to major dosing errors.

No. This tool does not provide dosing recommendations. It only calculates based on the dose you input.

No. This is an educational tool to assist with calculations only. Always consult a qualified professional before using any compound.

For in-depth education, protocols, and real-world breakdowns, check out my YouTube channel. We cover peptides, dosing strategies, common mistakes, and how to use these compounds safely and effectively.

Concentration After Reconstitution

Concentration (mcg/mL) = (Vial mg × 1,000) ÷ BAC Water (mL)
Multiply vial size in mg by 1,000 to convert to mcg, then divide by BAC water volume.
Example: 5 mg + 2 mL → 5,000 ÷ 2 = 2,500 mcg/mL

Volume to Inject

Volume (mL) = Desired Dose (mcg) ÷ Concentration (mcg/mL)
Divide your dose by the concentration to find how many mL to draw.
Example: 250 mcg ÷ 2,500 mcg/mL = 0.10 mL

Syringe Units to Draw

Units = Volume (mL) × 100
All insulin syringes are U-100: 1 mL = 100 units. This is constant regardless of syringe barrel size.
Example: 0.10 mL × 100 = 10 units