Peptide Calculator
Greyline Peptides
Peptide Dosage Calculator
Reconstitution · Syringe Draw · mg ⇄ IU Conversion
Step 1 — Select Your Syringe
0.3 mL
30 units
0.5 mL
50 units
1.0 mL
100 units
Step 2 — Peptide Vial Amount
2 mg
5 mg
10 mg
15 mg
20 mg
30 mg
50 mg
Step 3 — Bacteriostatic Water Volume
0.5 mL
1 mL
2 mL
3 mL
5 mL
10 mL
Step 4 — Your Desired Dose
100 mcg
200 mcg
250 mcg
500 mcg
1000 mcg
2 mg
Results
Draw Syringe To
—
units on syringe
Volume to Draw
—
mL per dose
Concentration
—
mcg / mL
Doses Per Vial
—
total doses
Draw to the highlighted mark
mg ⇄ IU Converter
International Units (IU) are used for compounds like HGH and HCG. The conversion factor depends on the specific compound. Select a compound below or enter a custom factor.
Common IU Reference Table
| Compound | Conversion Factor | Example |
|---|---|---|
| HGH (rHGH) | 3 IU = 1 mg | 5 mg vial = 15 IU |
| HCG | ~1,700 IU = 1 mg | 5,000 IU = ~2.94 mg |
| Insulin (U-100) | 100 IU = 1 mL | 10 IU = 0.1 mL |
| Most Peptides (BPC-157, TB-500, etc.) | Dosed in mg / mcg | No IU conversion needed |
Most research peptides (BPC-157, TB-500, Semaglutide, Retatrutide, etc.) are dosed in mg or mcg, not IU. Use the Reconstitution tab for those.
Dosage Reference Chart
Select a vial size and BAC water volume to see a full draw chart for common doses. Uses a standard 100-unit (1 mL) insulin syringe.
Chart
| Dose (mcg) | Dose (mg) | Volume (mL) | Units (100u syringe) |
|---|
Research Use Only. This calculator is for informational and research purposes only and does not constitute medical advice. Always verify calculations independently. Greyline Peptides products are intended for laboratory research use only.