Tirzepatide Reconstitution & Dosage Calculator

Tirzepatide vials are commonly labeled in whole milligrams. 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 tirzepatide dosage calculator — reconstitution and dosage are just two steps of the same math.

Tirzepatide vials are commonly sold in 10 mg, 20 mg, 30 mg, and 60 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.

Tirzepatide 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 tirzepatide?

There's no fixed water amount for tirzepatide — the volume you choose fixes your vial's concentration, not a rule the compound follows. Add more and your tirzepatide solution is more dilute, so a dose takes a bigger draw; add less and it's more concentrated, shrinking the draw. Enter your tirzepatide vial's mg and water volume above to see it calculated.

Tirzepatide units calculator

Tirzepatide is dosed in mg or mcg, but a syringe reads in units — 100 units per mL on a standard U-100 barrel. This calculator takes the injection volume worked out from your tirzepatide vial and dose, then expresses it as that unit count, so your tirzepatide draw lines up with a printed mark instead of a milliliter estimate.

Frequently asked questions

Is this a free peptide calculator for tirzepatide?

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 tirzepatide dosage calculator?

Yes. Reconstitution and dosage are two steps of the same calculation: this tool first works out your tirzepatide 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 tirzepatide vials?

Tirzepatide vials are commonly sold in 10 mg, 20 mg, 30 mg, and 60 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.

Can I use this online for free, without downloading anything?

Yes. It's a web page, not a download — open it in any browser, enter your numbers, and it calculates instantly. Nothing to install, no account, no data sent anywhere.

Is there a tirzepatide reconstitution calculator app?

Not a separate app in an app store — this web calculator covers the same job. You can add it to your phone's home screen for an app-like icon and full-screen view; either way, it runs the same free, private calculation in your browser.

Is this a tirzepatide reconstitution calculator for weight loss?

This calculator handles the arithmetic for tirzepatide, a compound commonly used in weight-management protocols — concentration from your vial's amount and water volume, then a dose into a syringe draw. It doesn't recommend a dose, a protocol, or a use case; it converts whatever numbers you already have.

Does tirzepatide 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 this calculator affiliated with a specific tirzepatide 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 there a tirzepatide peptide dosage chart?

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

Is this tirzepatide 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.