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Tirzepatide dosage chart in units

The units for a tirzepatide dose depend on the strength of the liquid and the syringe. Enter the total mg in your vial, its total mL and your syringe type to see each draw.

Selected doses in syringe units

Total drug in vial
60 mg
Total liquid volume
3 mL
Syringe
U-100 insulin syringe · 1 mL · lines every 2 units
mg, not mg/mL
mg
from the label or preparation instructions
mL
Syringecapacity and mark spacing

U-100 insulin syringe · 1 mL · lines every 2 units · 1 unit = 0.01 mL

Dose conversions

Read the calculated units and volume for each dose. The closest line shows any gap between that draw and a syringe mark.

20.00 mg/mL · 200 mcg per unit · 1 of 6 match a modeled mark

Selected Tirzepatide doses converted at 60 mg in 3 mL on a U-100 insulin syringe · 1 mL · lines every 2 units. The closest syringe line shows the gap; it is not a reason to round the dose.
DoseCalculated drawClosest line
2.5 mg12.5 units0.125 mL12 units4.0% difference
5 mg25.0 units0.250 mL26 units4.0% difference
7.5 mg37.5 units0.375 mL38 units1.3% difference
10 mg50.0 units0.500 mL50 unitsExact match
12.5 mg62.5 units0.625 mL62 units0.8% difference
15 mg75.0 units0.750 mL76 units1.3% difference

About these figures These are conversion examples, not a dosing or rounding plan. Follow your prescriber’s dose and the pharmacy’s instructions.

60 mg ÷ 3 mL = 20.00 mg/mL
→ dose ÷ 20.00 ÷ 0.01 = units
Convert units back to a dose

What does this unit count contain?

The other direction, using the vial set above. A unit count does not identify the syringe, so all three syringe types are shown.

arrow keys change one unit
u

The result uses the total drug amount and liquid volume entered above.

That draw carries
2.00mg

2,000 mcg · 0.100 mL · 20.00 mg/mL · 200.0 mcg per unit · 30 draws per vial

10.0 units on a U-100 insulin syringe · 1 mL · lines every 2 units is 0.100 milliliters, which carries 2,000.0 micrograms from a 60 milligram vial at 20.00 milligrams per milliliter.

The same 10 units on each syringe
  • U-100 · 1 mL0.01 mL per unit2.00 mg
  • U-100 · 0.5 mL0.01 mL per unit2.00 mg
  • U-40 · 1 mL0.025 mL per unit5.00 mg

The same number of units can mean a different amount on a different syringe. The largest and smallest amounts here differ by 2.5×. Check whether yours is U-100 or U-40, and how much the barrel holds.

Volume drawn
0.100 mL
10 units × 0.01 mL per unit
Draws in the vial
30
60 mg vial at 2.00 mg a draw

Arithmetic, not a dose. This reads a draw somebody has already described. It says what that unit number carries from the vial described above — not whether that amount is right for anyone.

60 mg ÷ 3 mL = 20.00 mg/mL
→ 200.0 mcg/unit × 10 units = 2,000.0 mcg

1 unit on a U-100 insulin syringe · 1 mL · lines every 2 units is 0.01 mL, whatever is in the vial. Nothing on this panel is stored or sent anywhere.

How milligrams become syringe units

Divide the total mg by the total mL to find the strength, or concentration, in mg/mL. Divide the dose in mg by that strength to get the draw in mL. On a U-100 syringe, multiply the draw in mL by 100 to get units.

Example: 60 mg in 3 mL

The concentration is 20 mg/mL. Each U-100 unit holds 200 mcg.

2.5 mg dose
12.5 units (0.125 mL)
15 mg dose
75 units (0.75 mL)

These are conversion examples, not a plan for which dose to take. For a ready-mixed vial, use the strength on its label. Do not add water based on this chart.

The calculated draw may fall between syringe marks

The 1 mL U-100 syringe shown here has a mark every 2 units. With the example vial, 1 of 6 doses land on a mark. When a draw falls between marks, the chart shows the nearest one and how far off it is.

For example, a 2.5 mg dose is 12.5 units. The closest line on this syringe is 12 units, a difference of 4%. This shows the gap. It is not a reason to round your prescribed dose.

Your syringe may have different marks. Check its type and the vial strength against the pharmacy’s instructions.

The same dose can need more or fewer units

At 30 mg/mL, the same 2.5 mg dose needs 8.33 U-100 units. At the opening 20 mg/mL, it is 12.5 units.

Two charts can show different units for the same dose because the vial strengths differ. Use the details for your own vial. If the draw does not fit your syringe’s marks, ask the pharmacy how to measure it.

Mounjaro and Zepbound have different dosing instructions

Both contain tirzepatide. They treat different conditions and have different rules for when to raise the dose. The rows above show the math for each amount, not when to take it.

Syringe units are not pen clicks. A pen may have a dose dial or hold one fixed dose. Use the instructions for your own pen or vial.

Full tirzepatide dosage reference

Questions about tirzepatide units

How many units is 2.5 mg of tirzepatide?

At 60 mg in 3 mL, it is 12.5 U-100 units. At 30 mg/mL, it is 8.33 units. You need the vial strength to know which unit count applies.

What does a unit count mean in milligrams?

“Convert units back to a dose” uses your vial details to show the dose for each syringe type. A U-100 unit is 0.01 mL whether the barrel holds 0.5 mL or 1 mL. A U-40 unit is 0.025 mL.

Should I change the amount of water?

Follow the dispensing pharmacy’s mixing instructions. The chart shows how the amount of liquid changes the unit count; it does not tell you to change your mix.

Is 15 mg the top of this chart?

The doses listed here end at 15 mg. With a weak mix, even a small dose can need more liquid than the syringe holds. The chart flags a draw that is too large.

Work out one prescribed dose

The tirzepatide calculator works out the draw for one dose. For other compounds, use the peptide calculator.

HealthspanLedger · https://healthspanledger.com/tools/tirzepatide-dosage-chart-in-units