Peptulator
Get the Protocol Pack

10 mg to units on an insulin syringe

It depends on the concentration. 10 mg is 100 units at 10 mg/mL, 50 units at 20 mg/mL and 66.7 units at 15 mg/mL. The calculator below is set to 10 mg; change the vial and water to match yours.

Peptulator, peptulator.com. Research use only, not medical advice.

Free downloadThe Protocol Pack

25 printable pages: dosing cards for the twelve most-used compounds at three water volumes, titration planners, a vial log, and five pages on what to do when it has already gone wrong.

The download appears here. No account, no spam, one-click unsubscribe.

Worked example: 10 mg from a 60 mg vial

The calculator above starts from a 60 mg Tirzepatide vial reconstituted with 3 mL of bacteriostatic water. That is 20 mg/mL. 10 mg divided by 20 mg/mL is 0.5 mL, and on a U-100 insulin syringe 1 mL is 100 units, so the mark to draw to is 50 units. Change the vial or the water to match what is in your hand and the number updates.

10 mg is the fourth rung of the tirzepatide ladder and a step some retatrutide protocols reach in month five. From a 10 mg vial it is the entire vial.

10 mg in units, by vial and water

Every common vial size at 1, 2 and 3 mL. The dose never changes across a row; only the volume you draw does. Anything over 100 units does not fit a 1 mL syringe: use less water or split the injection.

Vial1 mL water2 mL water3 mL water
10 mg vial100 units200 units (over one syringe)300 units (over one syringe)
15 mg vial66.7 units133.3 units (over one syringe)200 units (over one syringe)
20 mg vial50 units100 units150 units (over one syringe)
30 mg vial33.3 units66.7 units100 units
60 mg vial16.7 units33.3 units50 units

Units on a U-100 insulin syringe. Concentration in each cell is vial mg divided by water mL; for example 15 mg in 2 mL is 7.5 mg/mL.

Where 10 mg sits on the GLP-1 ladders

The titration pages show every rung of each ladder in units at once: retatrutide, tirzepatide, semaglutide. None of this is a recommendation; it is what the licence or the commonly reported protocols say, so you can check your own numbers against them.

Common questions

How many units is 10 mg on an insulin syringe?
It depends on the concentration. At 10 mg/mL (for example 20 mg in 2 mL) 10 mg is 100 units. At 20 mg/mL (60 mg in 3 mL) it is 50 units. At 15 mg/mL (30 mg in 2 mL) it is 66.7 units. Units are volume; without the vial strength and the water there is no single answer.
How much bacteriostatic water should I use for a 10 mg dose?
Whatever puts the draw between about 10 and 50 units, where the barrel is easiest to read. From a 60 mg vial, 3 mL gives 20 mg/mL and puts 10 mg at 50 units. More water means a bigger, easier draw of the same dose; less water means a smaller one. Most vials take 2 to 3 mL comfortably.
Is 10 mg the same as 100 units?
Only at 10 mg/mL, which you get from 10 mg in 1 mL, 20 mg in 2 mL or 30 mg in 3 mL. At that concentration units is simply the dose in mg times ten. At any other concentration the number is different: 66.7 units at 15 mg/mL, for example.

Common conversions

The same three-step maths, pre-filled for the doses people ask about most. Units on a U-100 insulin syringe, where 100 units is 1 mL.

All calculators and charts

Weight management (GLP-1 family)

Growth hormone axis

Repair, skin and blends

Other compounds

Dosage charts and schedules

Tools

Before you use these numbers This is a unit-conversion tool. It turns a vial strength and a water volume into a concentration, a draw volume and a syringe mark. It does not tell you what to take, whether to take it, or whether a compound is safe for you. Most compounds listed are sold for laboratory research and are not approved for human use. Nothing here is medical advice. Dosing decisions belong with a licensed clinician who knows your history. Always check the strength printed on your own vial rather than trusting a preset.