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

Guides

01
Insulin syringe sizes
The three U-100 insulin syringe sizes sold in Australia, how many units each holds, how finely each is marked, and how to choose between them.
02
Insulin needles: sizes, gauge and length
Read insulin needle gauge and length separately from barrel capacity, with current NDSS syringe specifications and pen needle compatibility checks.
03
How to read an insulin syringe
Where to read the dose on the barrel, what the small and large marks mean on each syringe size, and the mistakes that lead to wrong doses.
04
Insulin syringes vs pen needles
The practical differences between drawing up with a syringe and using a pen needle: dose precision, cost, comfort, and which one fits which situation.
05
U-100 insulin syringes and the U-40 scale
U-100 and U-40 syringes are marked for different insulin strengths. Using the wrong one changes the dose by 2.5 times. How to tell them apart.
06
Where to buy insulin syringes in Australia
Pharmacies, the NDSS for people with diabetes, and online suppliers. What you need, what it costs, and what to check before you order.
07
Sharps containers in Australia
Check sharps container openings, fill lines and closure instructions, then find an Australian disposal service that accepts your sealed container.
08
Needle and syringe programs in Australia
Find official needle and syringe program information for every Australian state and territory, including equipment access and disposal service checks.
09
Insulin pen needles
Understand insulin pen needle labels, check pen compatibility and find Australian NDSS access information, with storage and sharps disposal guidance.
10
0.5 mL insulin syringes
A 0.5 mL U-100 syringe holds 50 scale units. Read the capacity, graduations and needle specification before comparing Australian syringe listings.
11
31G insulin syringes
Read a 31G insulin syringe label, compare needle lengths and barrel capacities, and check Australian buying and disposal information before ordering.
12
Getting syringes through the NDSS
Check NDSS syringe access, who can apply, how to confirm eligibility and where to order supplies through an Australian NDSS Access Point.
13
Insulin syringes at Chemist Warehouse and other pharmacies
Compare pharmacy and online syringe buying in Australia: exact specifications, seller details, ARTG information, delivery and disposal planning.
14
Insulin syringe prices in Australia
Compare Australian syringe purchase costs by exact specification, pack quantity and delivery, and check NDSS access before paying for a private order.
15
Sharps disposal near me: drop-off points by state
Find Australian household sharps disposal guidance by state or territory. Check receiving services and container acceptance before you travel.

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.

25 pages. Content updated 2026-11-04.