How to Use This Peptide Calculator
Enter Peptide Amount
Input the total milligrams (mg) in your peptide vial. Common sizes: 2mg, 5mg, 10mg.
Add Water Volume
Enter how much bacteriostatic water (BAC water) you'll add. More water = easier to measure small doses.
Set Your Dose
Enter your desired dose in micrograms (mcg). The calculator shows exact syringe units to draw.
Popular Peptide Dosage Charts
| Peptide | Common Vial | Typical Dose | BAC Water | Units to Draw |
|---|---|---|---|---|
| BPC-157 | 5mg | 250mcg | 2mL | 10 units |
| TB-500 | 5mg | 2.5mg (loading) | 2mL | 100 units |
| Semaglutide | 5mg | 250mcg | 2mL | 10 units |
| CJC-1295 | 2mg | 100mcg | 2mL | 10 units |
| Ipamorelin | 5mg | 200mcg | 2mL | 8 units |
| GHK-Cu | 50mg | 1mg | 5mL | 10 units |
| KPV | 5mg | 200mcg | 2mL | 8 units |
| Epithalon | 10mg | 5mg | 2mL | 100 units |
These are common research doses. Always verify with your protocol. This calculator is for educational purposes only.
The Math Behind Peptide Reconstitution
Concentration formula:
Concentration (mg/mL) = Peptide (mg) ÷ Water (mL)Units to draw:
Units = [Dose (mcg) ÷ 1000] ÷ Concentration × 100Example: BPC-157 250mcg dose
- 5mg vial + 2mL BAC water = 2.5 mg/mL
- 250mcg = 0.25mg
- 0.25mg ÷ 2.5 mg/mL = 0.10mL
- 0.10mL × 100 = 10 units on insulin syringe
Printable reconstitution chart — free
Get the reference chart by email (concentrations, µg per 10 units, formulas, storage) to keep next to your prep space.
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Need More Than a Calculator?
Track Your Entire Protocol with Peptide Lab
The calculator is just the beginning. Peptide Lab gives you:
- Body Map Injection Tracker — 14 sites, smart rotation
- Weight & Effects Logging — Correlate results with protocol
- Half-Life Visualization — Optimize injection timing
- 10 Training Chapters — Master reconstitution step-by-step
- Push Reminders — Never miss a dose
Understanding Insulin Syringe Units
10 units = 0.10 mL
Quick Reference
- 100 units = 1 mL (full syringe)
- 50 units = 0.5 mL (half syringe)
- 10 units = 0.1 mL (1/10th syringe)
- 1 unit = 0.01 mL
Standard insulin syringes are U-100, meaning 100 units per mL. This calculator uses this standard.