Skip to content
PeptideSport
Rankings
Menu

Free tool · BPC-157 vials · Arithmetic only

BPC-157 Dosage Calculator

BPC-157 is worked out in micrograms while syringes are marked in hundredths of a millilitre, so the numbers land in an awkward place: a typical draw is only a handful of unit marks, and one mark is a large fraction of it. The way out is to know how many micrograms a single mark carries at your concentration — which is the first thing this tool shows you.

It is the same engine as the general peptide calculator, set to micrograms. It converts what you type. It does not propose an amount, and there is no established human dose for BPC-157 for it to propose.

The math, before you use the tool

Concentration
mcg/mL = (vial mg ÷ water mL) × 1000
Per unit mark
mcg per unit = (mcg/mL) ÷ 100
Volume to draw
mL = (amount mcg ÷ 1000) ÷ concentration (mg/mL)
Syringe units
units = volume (mL) × 100 [or: amount mcg ÷ mcg per unit]
Draws per vial
draws = (vial mg × 1000) ÷ amount (mcg)

The shortcut worth memorising is the second line. Once you know that a 5 mg vial in 2 mL gives 25 mcg per mark, every conversion afterwards is a single division you can do in your head — and a figure that does not come out near a whole mark is a signal to re-check something.

Read this before you use the calculator

This tool performs unit arithmetic on numbers you enter, and nothing else. It is not medical advice, it does not recommend a dose, and it is not a suggestion that you use any compound. Most of the peptides these calculators get used with are not FDA-approved for the purposes they are marketed for, are sold through a grey market where purity and labelling are not guaranteed, and many are prohibited in tested sport — check yours with the WADA prohibited-status checker. Any decision to use a compound, and any amount, must come from a licensed clinician who knows your history. BPC-157 is not FDA-approved for any human use, its evidence is almost entirely rodent work, and nothing on this page suggests it is effective or safe.

You already mixed the vial and want to know what a dose looks like on the syringe.
BPC-157 vial strengths commonly sold
These fill the vial-size field only. A vial strength is what the container holds — it is not a dose, and listing it is not a recommendation to use BPC-157.
Dose you are working out
The number you were told to work out — this tool does not propose one. 1 mg = 1000 mcg.

Enter the vial size, the water you added, and the amount you are working out. Every field starts blank on purpose — this tool converts your numbers, it does not supply them.

This is arithmetic, not advice. Every figure above is derived only from the numbers you typed. Nothing here is a recommended dose, a claim that any compound is approved, safe, or effective, or a suggestion that you should use one. Confirm the vial label, the water volume, and the amount with a licensed clinician before you draw anything.

Worked examples

Real numbers, every step shown, so you can check the tool against a pen and paper. These illustrate the arithmetic — the amounts in them are inputs chosen to make the maths legible, not amounts anyone should use.

A 5 mg vial mixed with 2 mL, working out 250 mcg

  1. 1Concentration: 5 mg ÷ 2 mL = 2.5 mg/mL = 2500 mcg/mL
  2. 2Per unit mark: 2500 ÷ 100 = 25 mcg
  3. 3Units: 250 mcg ÷ 25 mcg per mark = 10 units
  4. 4Cross-check by volume: 0.25 mg ÷ 2.5 mg/mL = 0.1 mL × 100 = 10 units
  5. 5Draws per vial: 5000 mcg ÷ 250 mcg = 20

10 units · 25 mcg per mark · 20 draws from the vial

A 10 mg vial mixed with 2 mL, working out 500 mcg

  1. 1Concentration: 10 mg ÷ 2 mL = 5 mg/mL = 5000 mcg/mL
  2. 2Per unit mark: 5000 ÷ 100 = 50 mcg
  3. 3Units: 500 mcg ÷ 50 mcg per mark = 10 units
  4. 4Draws per vial: 10000 mcg ÷ 500 mcg = 20

10 units again — double the vial, double the amount, identical reading

Adding a price: cost per draw

  1. 1A 5 mg vial gives 20 draws at 250 mcg
  2. 2Vial price: $55
  3. 3Cost per draw: $55 ÷ 20 = $2.75

$2.75 per draw

Solving the water so 250 mcg lands on 20 units instead of 10

  1. 1water mL = (target units × vial mg) ÷ (amount mg × 100)
  2. 2water mL = (20 × 5) ÷ (0.25 × 100) = 100 ÷ 25 = 4 mL
  3. 3That gives 1.25 mg/mL, or 12.5 mcg per mark
  4. 4But check the vial first — 4 mL will not fit a 3 mL vial

4 mL, if the container physically holds it — otherwise pick a lower mark

Frequently asked questions

How do you calculate BPC-157 units on an insulin syringe?
Divide the vial's mg by the bacteriostatic water in mL for the concentration, convert the amount you are working out from micrograms to milligrams by dividing by 1000, divide that by the concentration for the volume in mL, then multiply by 100 for U-100 units. Example: a 5 mg vial in 2 mL is 2.5 mg/mL; 250 mcg is 0.25 mg, which is 0.1 mL, which is 10 units.
How many units is 250 mcg of BPC-157?
It depends entirely on the concentration, and any source that answers without one is wrong. From a 5 mg vial in 2 mL (2.5 mg/mL) it is 10 units. From the same vial in 1 mL (5 mg/mL) it is 5 units. From a 10 mg vial in 2 mL (5 mg/mL) it is also 5 units. Units measure volume, not mass, so the concentration always comes first.
How many micrograms does one unit mark carry?
Take the concentration in mcg/mL and divide by 100. A 5 mg vial in 2 mL is 2500 mcg/mL, so one mark is 25 mcg. The same vial in 1 mL is 5000 mcg/mL, so one mark is 50 mcg. Working in mcg per mark is the fastest sanity check there is — if the figure you were given is not a whole number of marks, the water volume was probably chosen without thinking about it.
Does the water volume change how many draws a BPC-157 vial gives?
No. The vial holds a fixed mass, so draws per vial is vial mg divided by the amount in mg regardless of water. A 5 mg vial worked out at 250 mcg gives 20 draws whether it was mixed with 1 mL or 3 mL. What water changes is where each draw lands on the barrel, and therefore how easy it is to read accurately.
Is BPC-157 approved or safe?
BPC-157 is not an FDA-approved drug for any use in humans. Its evidence base is overwhelmingly rodent work, there is no robust human trial supporting the healing claims made for it, and it is sold through a grey market where the contents of a vial have not been verified by anyone. It is also a compliance risk in tested sport. This calculator converts units; it makes no claim that BPC-157 works or is safe.
Does this calculator recommend a BPC-157 dose?
No, and it deliberately cannot. Every field starts blank, no amount is pre-filled or suggested, and the shortcut chips fill a vial strength — a container size printed on a label — rather than a dose. There is no established human dose for BPC-157 to recommend. It is unit arithmetic, not medical advice, and any decision here belongs with a licensed clinician.

The part a calculator cannot answer

A number on a syringe is the easy half. Whether a compound does anything in humans, whether it is legal to buy, and whether it will end a season are the questions worth your time:

Medical disclaimer: This content is for general educational purposes only and is not medical advice, diagnosis, or treatment. Always consult a licensed healthcare professional before starting, stopping, or changing any treatment.

This calculator converts units. It does not account for your health, the specific product in your hand, its actual purity, injection technique, or whether using it is appropriate at all. Nothing on this page states or implies that any compound is FDA-approved, safe, or effective. Talk to a licensed clinician before acting on any figure here.