Reconstitution Calculator

Peptide Dose Calculator

Calculate how many units to draw on your insulin syringe. Enter your vial size, how much BAC water you're adding, and your desired dose.

Educational only — not medical advice.This calculator is for informational purposes. Doses, reconstitution ratios, and administration methods vary by compound and individual. Always consult a licensed healthcare provider before using any compound.Read the reconstitution guide →

Common peptide presets

Peptide in vial (mg)

BAC water to add (mL)

Desired dose

Syringe type

U-100 insulin syringe (1 mL = 100 units)

Syringe fill

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units to draw

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Concentration

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Draw volume

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Doses / vial

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Your dose

Enter your vial size, BAC water, and dose to see your draw.

How to use this calculator

Enter the total peptide mass in your vial (e.g., 5 mg)
Enter how much BAC water you're adding (e.g., 2 mL)
Enter your desired dose in mcg or mg
Select your syringe type (U-100 is most common)
Draw the indicated number of units on your syringe

Units are rounded to the nearest 0.5 for practical measuring. The syringe diagram shows fill level.See full reconstitution guide →

Syringe types explained

U-100

1 mL / 100 units

Most common for peptides. 1 unit = 0.01 mL.

U-50

0.5 mL / 50 units

Half-capacity syringe. Still 100 units/mL, so same math as U-100.

U-40

1 mL / 40 units

Older/veterinary standard. 1 unit = 0.025 mL — DIFFERENT from U-100. Common mistake source.

U-40 warning: Never use a U-40 syringe with U-100 calculations. You'll draw 2.5× too much. Always confirm your syringe type before drawing.

Educational only — not medical advice.This calculator is a mathematical tool only. Dosing protocols vary by compound and individual. Consult a licensed healthcare provider before using any peptide.