Home/Calculator
Tools

Peptide Reconstitution Calculator

Enter your peptide amount, BAC water volume, and desired dose per injection. Get exact volumes, total doses, and U-100 syringe markings — instantly.

Calculate Injection Volume

All fields required. Use mg or mcg — the calculator handles conversion automatically.

Check your vial label. Common sizes: 2 mg, 5 mg, 10 mg, 20 mg, 500 mg (NAD+)
Bacteriostatic Water only. Common volumes: 1 mL, 2 mL, 5 mL, 10 mL
Refer to the peptide page for standard dose ranges

Your Results

Concentration
—
mcg per mL
Total Doses
—
per vial
Volume per Injection
—
U-100 Syringe Units
—
units on U-100
U-50 Syringe Units
—
units on U-50

Always double-check your math before injecting. If results seem unexpected, verify your vial label and BAC water volume. For peptide-specific dose guidance, refer to the individual peptide pages.

Common Reconstitution Quick Reference

Standard concentrations for frequently researched peptides — based on typical vial sizes and BAC water volumes.

PeptideVialBAC WaterConcentration250 mcg dose
BPC-1575 mg2 mL2,500 mcg/mL0.10 mL / 10 units
BPC-15710 mg2 mL5,000 mcg/mL0.05 mL / 5 units
GHK-Cu50 mg5 mL10,000 mcg/mL0.025 mL / 2.5 units
Tessalin5 mg5 mL1,000 mcg/mL0.25 mL / 25 units
NAD+500 mg10 mL50,000 mcg/mL— (use mg dosing)
Retatrutide10 mg2 mL5,000 mcg/mL— (use mg dosing)

Load a Preset

How to Use This Calculator

This calculator gives you the volume of reconstituted solution to draw into your syringe for each injection.

  • Use Bacteriostatic Water (BAC water) for reconstitution — not plain sterile water, except for NAD+
  • Results show volume in mL and units on a U-100 insulin syringe
  • Always verify calculations against the peptide page dose tables
  • If your dose seems very large or very small, double-check your units (mg vs mcg)

Unit Conversions

FromToMultiply by
mgmcg1,000
mcgmg0.001
mLU-100 units100
U-100 unitsmL0.01
IUvaries by peptide—

Get Protocol Updates

Subscribe for FDA news, peptide research updates, and new protocol guides delivered to your inbox.

No spam. Unsubscribe anytime.