How many ml is 10 units of insulin?

10 units on a U-100 syringe is 0.10 ml. U-100 means 100 units per millilitre, so every unit is 0.01 ml regardless of barrel size.

What size insulin syringe should I use?

Ask your pharmacist to match the actual capacity and graduations to your prescribed measurement. Capacity alone does not establish suitability.

Do I need a prescription to buy insulin syringes in Australia?

No. Syringes are sold over the counter at pharmacies and online. People registered with the NDSS for insulin-treated diabetes can access approved syringes without a co-payment through NDSS Access Points.

Australia

Insulin syringes, explained plainly

One unit on a U-100 syringe is 0.01 ml. That single fact, plus the marks on your barrel, is nearly everything. The rest of this site is the detail: sizes, needles, how to read the scale, and where to buy in Australia.

Units to ml, on your barrel

Pick 0.3, 0.5 or 1 ml, type the units, and see the plunger on the real marks. Rounds to the graduation that exists on that syringe and tells you when your number falls between two.

Open the converter

Close-up of U-100 insulin syringe markings at 10, 20 and 30 units

Guides

01
Insulin syringe sizes
Match the scale, capacity and marked divisions before ordering in Australia.
02
Needle gauge and length on insulin syringes
Understand needle gauge and length on the packet; confirm equipment with your pharmacist.
03
How to read an insulin syringe
Identify the scale and reading edge, then check the manufacturer instructions.
04
U-100 vs U-40 syringes: why the scale matters
Two scales, same-looking syringe, a 2.5 times dose difference. Mostly a pet-owner problem.
05
Insulin syringes vs pen needles
How the two devices differ and why matching your prescribed equipment matters.
06
Where to buy insulin syringes in Australia
Pharmacy, NDSS and online routes, plus an exact-specification buying checklist.
07
Sharps disposal by state and territory
State and territory disposal contacts and container acceptance checks.
08
Getting syringes through the NDSS
Eligibility, product access and ordering through an NDSS Access Point.
09
Insulin syringe prices in Australia
Dated published prices per 100, with specifications and source links.
10
Pharmacy or online: what to check
Check the seller, device information, pack contents and delivery.

Who this is for

Anyone in Australia who injects a prescribed medicine at home with a syringe. Diabetes is the common case, but fertility treatment, hormone therapy, MS and several biologics use the same consumables. The syringe does not know what is in it. Neither does this site, and it never advises on doses.

If you need the supplies as well as the explanation, Sterivial ships 1 ml insulin syringes and alcohol prep pads anywhere in Australia.

Common questions

How many ml is 10 units of insulin?: 10 units on a U-100 syringe is 0.10 ml. U-100 means 100 units per millilitre, so every unit is 0.01 ml regardless of barrel size.
What size insulin syringe should I use?: Ask your pharmacist to match the actual capacity and graduations to your prescribed measurement. Capacity alone does not establish suitability.
Do I need a prescription to buy insulin syringes in Australia?: No. Syringes are sold over the counter at pharmacies and online. People registered with the NDSS for insulin-treated diabetes can access approved syringes without a co-payment through NDSS Access Points.

20 pages. Content updated 2026-10-17.