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BPC-157 Dosage Calculator

BPC-157 usually ships as a 5 mg or 10 mg vial and is measured in micrograms, so the draw on a 30U syringe is small. This page presets the common vial sizes and shows the math for every combination.

Peptide5 mg
Water2 mL
Dose250 mcg
Syringe30U
Draw10U

Peptide in the vial

5 mg
mg

Bacteriostatic water added

2 mL
mL

More water = more units per dose (easier to measure). Less water = fewer units (fits smaller syringes).

Syringe

30U · 0.3 mL

Check the last printed number on your barrel: 30, 50 or 100. That is the capacity.

Dose you want

250 mcg

Vial price (optional)

–
$shows cost per dose

Supplies for your next vial

Everything around the vial, in one box, from the same people who built this calculator.

Reconstitution Supply Kit

  • 10 U-100 insulin syringes, 31G, 5/16" needle (the 30U size this calculator defaults to)
  • 50 sterile 70% isopropyl alcohol prep pads
  • 1-quart sharps container so used needles never go in the trash
  • Printed reconstitution and storage card

Does not include bacteriostatic water or peptides. Research and laboratory use. Must be 18+ to purchase. Not shipped to states that restrict non-prescription syringe sales.

$24.95 free US shipping · ships in 3 to 5 days
Reserve a kit (email, pay when it ships) Online checkout opens shortly. Reservations are first in line and there is no charge until the kit ships.

Common vial sizes and water amounts

VialWaterWhat that gives you
5 mg1 mL50 mcg per unit; 250 mcg = 5U
5 mg2 mL25 mcg per unit; 250 mcg = 10U
10 mg2 mL50 mcg per unit; 500 mcg = 10U
10 mg3 mL33 mcg per unit; 500 mcg = 15U

Worked examples

5 mg vial + 2 mL water, entering 250 mcg
Concentration 2.5 mg/mL → 25 mcg per unit → draw 10 units (0.1 mL) on a 30U syringe. That vial holds about 20 such draws.
5 mg vial + 1 mL water, entering 250 mcg
Concentration 5 mg/mL → 50 mcg per unit → draw 5 units (0.05 mL) on a 30U syringe. That vial holds about 20 such draws.
10 mg vial + 2 mL water, entering 500 mcg
Concentration 5 mg/mL → 50 mcg per unit → draw 10 units (0.1 mL) on a 30U syringe. That vial holds about 20 such draws.

Notes for this calculator

Because BPC-157 entries are in micrograms, small draws are the main problem. A 250 mcg entry on a 5 mg vial mixed with 1 mL is only 5 units; the same entry with 2 mL is 10 units and much easier to read. If your draw lands under 5 units, the calculator tells you how much water would fix it on the next vial.

BPC-157 is also sold blended with TB-500. For a blend, use the blend calculator, which treats the vial's total milligrams as one number.

Vials for this calculator: see what ThePeptideStore carries. Supplies around the vial are in the kit above.

Common questions

How many units is 250 mcg of BPC-157?

It depends on the water. 5 mg with 1 mL is 5 units; 5 mg with 2 mL is 10 units; 10 mg with 2 mL is 5 units. Enter your vial and water above and the units update instantly.

How many doses are in a 5 mg vial of BPC-157?

5 mg is 5,000 mcg. Divide by your entry: 250 mcg gives 20 draws, 500 mcg gives 10. The calculator shows this as doses per vial.

How much bacteriostatic water for a 5 mg BPC-157 vial?

1 mL or 2 mL are the most common. 2 mL doubles the units per draw and is easier to measure on a 30U syringe.

Does the calculator recommend a dose?

No. You enter the dose your protocol calls for and it converts that into syringe units, mL, and doses per vial. It never suggests what to take.

Why is my draw too big for the syringe?

The concentration is low for that dose. Either use a larger U-100 syringe or mix the next vial with less water. The calculator shows the exact water amount that would fit your syringe.

More calculators and guides

About this tool. Built and maintained by the team at ThePeptideStore. The arithmetic is the standard U-100 reconstitution formula (concentration = mg ÷ mL; mcg per unit = concentration × 10; units = dose ÷ mcg per unit) and every result is recomputed live in your browser; nothing you enter is sent to a server. Reviewed 2026-09-02. This calculator does arithmetic on numbers you type. It is not medical advice and does not recommend any dose.
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