PT-141 Reconstitution & Dosage Calculator

PT-141 vials vary by supplier and label amount. Enter the exact amount printed on your vial — not an example — along with the bacteriostatic water you added and the dose you already have, to get a concentration and syringe draw. This free tool doubles as a PT-141 dosage calculator — reconstitution and dosage are just two steps of the same math.

PT-141 vials are commonly sold in 10 mg and 20 mg sizes. Enter your vial's actual labeled amount, not one of these examples.

Peptide amount in vial

The total peptide mass printed on your vial label.

mgmcg

Bacteriostatic water added

How much water you added to reconstitute the vial.

Desired dose

The dose you already have — this tool converts it, it doesn't choose it for you.

mgmcg

Syringe size (U-100)

0.3 mL0.5 mL1.0 mL

Results

Syringe draw

—u

Enter your dose above

Concentration (mg/mL): —
Concentration (mcg/mL): —
Injection volume: Enter your dose above
mcg per unit: —
Doses per vial: —

Formula: dose ÷ concentration × 100 — see methodologyFormulas verified: July 23, 2026No data leaves your browser

Arithmetic only — this tool does not recommend a dose.

How this calculator works

Concentration = peptide amount ÷ bacteriostatic water volume.
Injection volume = your dose ÷ that concentration.
Syringe units = injection volume × 100, since a U-100 syringe holds 100 units per mL.

PT-141 peptide dosage chart

This chart converts between units only — it is not a recommended dose for any compound. Your prescribed or protocol dose comes from your own paperwork, not this chart.

mg to mcg
mg	mcg
0.1 mg	100 mcg
0.25 mg	250 mcg
0.5 mg	500 mcg
1 mg	1,000 mcg
2 mg	2,000 mcg
5 mg	5,000 mcg
10 mg	10,000 mcg

mL to U-100 syringe units
mL	Units
0.05 mL	5 units
0.1 mL	10 units
0.2 mL	20 units
0.25 mL	25 units
0.5 mL	50 units
0.75 mL	75 units
1.0 mL	100 units

How much bacteriostatic water for PT-141?

There's no fixed water amount for PT-141 — the volume you choose sets your vial's concentration, not a rule the compound follows. Add less and the same labeled mass becomes more concentrated, shrinking the draw for any dose; add more and it's more dilute, growing the draw. Enter your PT-141 vial's mg and chosen water volume above to see which you get.

PT-141 units calculator

A U-100 syringe barrel is printed with unit lines, 100 to a milliliter, and that's the scale your PT-141 draw needs to match. This calculator turns the injection volume from your PT-141 concentration and dose into that same unit count, so you're reading a PT-141 draw off printed lines rather than judging a fraction of a milliliter by eye.

Frequently asked questions

Is this a free PT-141 peptide calculator?

Yes. It runs entirely in your browser, with no account, no login, and no data sent anywhere — enter your vial amount, water volume, and dose to get a concentration and syringe draw.

Is this a PT-141 dosage calculator?

Yes. Reconstitution and dosage are two steps of the same calculation: this tool first works out your PT-141 vial's concentration from its amount and water volume, then — once you enter a dose — converts that dose into an injection volume and syringe unit count.

What size are PT-141 vials?

PT-141 vials are commonly sold in 10 mg and 20 mg sizes, but always use the exact amount printed on your own vial's label rather than one of these examples — label amounts vary by supplier, and the calculator works identically for any amount you enter.

Is there a PT-141 peptide dosage chart?

See the mg/mcg and mL/units conversion chart below. It converts between units only — it does not list a recommended PT-141 dose, which should come from your own prescription or protocol.

Does PT-141 dosage use mg or mcg?

Both units appear on different suppliers' labels and protocols. 1 mg = 1,000 mcg. The calculator above has an mg/mcg toggle for both the vial amount and the dose field — match whichever unit is printed on your paperwork.

Is PT-141 the same as bremelanotide?

Yes. PT-141 is the common research name for bremelanotide — the two names refer to the same compound, so this calculator's arithmetic applies equally to a vial labeled with either name.

Is this calculator affiliated with a specific PT-141 brand or supplier?

No. This calculator is not affiliated with any peptide manufacturer or supplier — it performs the same arithmetic conversion regardless of where your vial came from.

Is this PT-141 calculator medical advice?

No. It applies one formula — mass divided by volume, then dose divided by concentration — to the numbers you enter. It does not suggest a dose, a vial size, or a solution volume. See the medical disclaimer for full detail.

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Educational tool only, not medical advice — verify with a licensed clinician. See the full medical disclaimer.