Free calculator · No sign-up
BPC-157 dosage calculator
BPC-157 vials are commonly labelled 2 mg, 5 mg, 10 mg. This calculator divides the vial mass by the diluent volume you enter to show concentration, then converts your own target amount into millilitres and syringe units. It states no dose, chooses no amount and stores nothing.
This page is a calculation tool. The amounts you enter are values you decided; this page states no dose and gives no medical advice.
BPC-157 vial concentration grid
This table answers one arithmetic question: what concentration results when a labelled vial mass is divided by a measured diluent volume? It does not select either value.
| Vial mass | Diluent | Concentration | Same concentration |
|---|---|---|---|
| 2 mg | 0.5 mL | 4,000 mcg/mL | 4 mg/mL |
| 2 mg | 1 mL | 2,000 mcg/mL | 2 mg/mL |
| 2 mg | 1.5 mL | 1,333.33 mcg/mL | 1.333 mg/mL |
| 2 mg | 2 mL | 1,000 mcg/mL | 1 mg/mL |
| 2 mg | 2.5 mL | 800 mcg/mL | 0.8 mg/mL |
| 2 mg | 3 mL | 666.67 mcg/mL | 0.667 mg/mL |
| 2 mg | 5 mL | 400 mcg/mL | 0.4 mg/mL |
| 5 mg | 0.5 mL | 10,000 mcg/mL | 10 mg/mL |
| 5 mg | 1 mL | 5,000 mcg/mL | 5 mg/mL |
| 5 mg | 1.5 mL | 3,333.33 mcg/mL | 3.333 mg/mL |
| 5 mg | 2 mL | 2,500 mcg/mL | 2.5 mg/mL |
| 5 mg | 2.5 mL | 2,000 mcg/mL | 2 mg/mL |
| 5 mg | 3 mL | 1,666.67 mcg/mL | 1.667 mg/mL |
| 5 mg | 5 mL | 1,000 mcg/mL | 1 mg/mL |
| 10 mg | 0.5 mL | 20,000 mcg/mL | 20 mg/mL |
| 10 mg | 1 mL | 10,000 mcg/mL | 10 mg/mL |
| 10 mg | 1.5 mL | 6,666.67 mcg/mL | 6.667 mg/mL |
| 10 mg | 2 mL | 5,000 mcg/mL | 5 mg/mL |
| 10 mg | 2.5 mL | 4,000 mcg/mL | 4 mg/mL |
| 10 mg | 3 mL | 3,333.33 mcg/mL | 3.333 mg/mL |
| 10 mg | 5 mL | 2,000 mcg/mL | 2 mg/mL |
BPC-157 physical-property record
Free-base identity and label matching
PubChem identifies BPC-157 as a discrete peptide record with formula C62H98N16O22 and molecular weight 1,419.5 g/mol. Cayman Chemical lists the same molecular weight for its free-base reference material. Those values belong to that named free-base structure. A vial carrying an acetate, trifluoroacetate or another counterion can have a different formula mass, so the exact form printed on a certificate should be preserved rather than silently replaced with the free-base number. Sources: PubChem: BPC-157 compound record · Cayman Chemical: BPC-157 free-base specification.
What the supplier specification says about handling
The Cayman specification describes BPC-157 reference material as a solid stored at -20 C. It reports PBS solubility at 1 mg/mL for that catalog item. This is a laboratory specification for a defined reference material, not a universal instruction for every commercial vial. Buffer composition, salt form, purity and excipients can change how a powder behaves, which is why the calculator asks for measured mass and measured liquid volume instead of assuming a preparation method. Sources: Cayman Chemical: BPC-157 free-base specification.
Why mass and molecular weight answer different questions
The molecular-weight record is useful for identity checks and molar calculations, while the vial label is a mass inventory. The calculator performs mass-per-volume arithmetic and therefore does not need molecular weight to convert milligrams into micrograms. Keeping these concepts separate prevents a common documentation error: copying a database value into a vial record as though it described the amount actually present. The physical label and any certificate of analysis remain the evidence for that amount. Sources: PubChem: BPC-157 compound record · Cayman Chemical: BPC-157 free-base specification.
A reproducible BPC-157 record
For this compound, a defensible arithmetic record keeps the displayed compound name, chemical form, lot identifier, labelled mass, actual diluent volume and source document together. The PubChem and Cayman records provide external identity anchors, but neither authenticates an unrelated vial. If a supplier uses a different salt or reports a different molecular weight, that difference should stay visible in the record. The page states no dose; its purpose is to preserve inputs and calculate concentration from values already chosen elsewhere. Sources: PubChem: BPC-157 compound record · Cayman Chemical: BPC-157 free-base specification.
How to use the calculator
- Read the total mass from your own vial label and enter it in milligrams.
- Enter the diluent volume you actually measured, not an intended or remembered value.
- Enter your own target amount and select the calibration printed on your syringe barrel.
- Record the concentration with the result so the syringe-unit figure remains interpretable later.
Source and identity record
Use the compound reference page and these external database searches when checking identity: PubMed literature search for BPC-157 · PubChem: BPC-157 compound record · Cayman Chemical: BPC-157 free-base specification. A database record does not authenticate a vial.
Frequently asked questions
How much bacteriostatic water for a 2 mg BPC-157 vial?
This calculator does not choose a diluent volume. Enter the volume you decided to add to the 2 mg vial and it will show the resulting concentration. The page supplies arithmetic, not an instruction.
How much bacteriostatic water for a 10 mg BPC-157 vial?
There is no universal volume selected by this page. Use the value you measured or were instructed to use; the calculator then divides the 10 mg label mass by that volume.
Does the BPC-157 calculator recommend a dose?
No. The target amount is always entered by the user. The tool provides no starting amount, maximum amount, progression, frequency or schedule.
Why does the syringe calibration matter?
A syringe unit is a volume marking. U-100, U-50 and U-40 barrels use different numbers of units per millilitre, so the same solution volume produces different markings.
Related pages
Stop recalculating this every time
PepCycle stores each vial once — mass, diluent volume, concentration — and converts automatically for every entry after that, in both directions, including entries you backdate.
Free to download · No account required · Price shown before you enter anything personal
Last updated · Written by Aykut Yilmaz. All calculations run in your browser; no values are transmitted or stored.