BPC-157 calculator
Enter your BPC-157 vial size, the water you added, and a dose. PepExact returns the exact units on a U-100 insulin syringe — and shows the arithmetic behind it.
The fields below are generic example numbers, filled in so you can see the calculator work — they are not a recommended BPC-157 dose. Clear them and enter your own vial size, water, and dose.
Your draw
10 units
on a U-100 insulin syringe · 0.1 mL
Concentration
2.5 mg/mL
2,500 mcg/mL
Volume per dose
0.1 mL
Doses in this vial
20
at 250 mcg each
Show the math
- 1. Concentration: 5 mg ÷ 2 mL = 2.5 mg/mL (2,500 mcg/mL)
- 2. Volume for one dose: 250 mcg ÷ 2,500 mcg/mL = 0.1 mL
- 3. Syringe units (U-100): 0.1 mL × 100 units/mL = 10 units
- 4. Doses in the vial: 5,000 mcg ÷ 250 mcg = 20 full doses
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About this calculator
BPC-157 (sometimes written as “Body Protection Compound-157”) is a synthetic peptide that has been examined in laboratory and animal research.
BPC-157 vials are commonly labelled in milligrams — for example 5 mg or 10 mg. Enter whatever your vial actually says and the calculator handles the rest.
Whatever the compound, this page only does arithmetic. It turns a vial size in milligrams, the water you add in millilitres, and a dose into the number of units on a U-100 insulin syringe — and shows every step. It does not know, store, or suggest what any dose should be.
The most common measurement slip is milligrams versus micrograms: 1 mg is 1,000 mcg. Keep the unit switch on the dose field set to whatever your number is actually written in, and the arithmetic stays honest.
Primary sources
PepExact does not assess whether any compound works or is appropriate for anyone. These registries are the record for research and regulatory status.
Common questions
How do I calculate BPC-157 syringe units?
Concentration is vial milligrams ÷ water millilitres; volume is your dose ÷ that concentration; units are volume in mL × 100 on a U-100 insulin syringe. PepExact runs all three steps and shows the working so you can check it.
How much water should I use to reconstitute BPC-157?
The water volume is your choice and only changes the concentration, not how much peptide is in the vial. More water gives larger, easier-to-read draws; less water gives smaller ones. The reconstitution calculator solves for the water volume that lands a dose on a round number of units.
Why do BPC-157 unit counts differ between calculators?
Usually different assumptions about water volume, syringe type, or a mix-up between mg and mcg. Because PepExact shows every step, you can see exactly which number drove the result rather than trusting it blindly.
Does PepExact tell me how much BPC-157 to take?
No. It is a measurement calculator only. It converts a vial, a water volume, and a dose you already have into syringe units, and never recommends a dose.
Related tools
PepExact is a measurement tool, not medical advice. It never suggests what or how much of BPC-157 — or anything else — to take; it only does the arithmetic on numbers you already have.