Back to guides
Syringes & units

Insulin syringes, units and millilitres

Units and millilitres are different scales and mixing them up changes your measurement a hundredfold. Here are the conversions, which hold on any insulin syringe.

Nearly 900 of the questions we get are about syringes, and most come down to one thing: units and millilitres are different scales, and mixing them up changes your measurement by a factor of a hundred.

What we supply

Evra supplies 1ml insulin syringes, marked to 100 units, 31 gauge with an 8mm needle. Our guides work in millilitres and units, so they apply whatever insulin syringe you are using.

1ml is 100 units, and 0.1ml is 10 units. A unit is the same on every insulin syringe, so read your measurement in units, not by how far along the barrel it sits. This is the single most common mix-up we correct.

The conversions

VolumeUnits
0.05ml5 units
0.1ml10 units
0.2ml20 units
0.5ml50 units
1ml100 units
2ml200 units
5ml500 units

Units are universal across insulin syringes, 1ml is 100 units on any of them. What changes between syringe sizes is only the barrel, so a dose written in units is drawn to the same marking whichever syringe you have.

Need syringes? 1ml insulin syringes, ten per pack, plus bac water and alcohol wipes.

Working out how many you need

Convert the total volume of liquid in your vial to units, then divide by the units you draw each time. A vial reconstituted with 2ml of bacteriostatic water holds 200 units, so drawing 20 units at a time gives you ten draws.

Plan on one syringe per draw, since they are single-use.

Handling

Common questions

What size syringes does Evra supply?
1ml insulin syringes, marked to 100 units, 31 gauge with an 8mm needle. A unit is the same on every insulin syringe, so a measurement in units is the same whatever syringe you use.
How many units are in 1ml?
100 units. Units are a universal insulin-syringe marking, so 1ml is always 100 units regardless of syringe size, and 0.1ml is always 10 units.
How many syringes come in a pack?
Ten per pack. Each is individually wrapped and single-use.
Can I reuse a syringe?
No. They are single-use. The needle dulls after one pass through a stopper and reuse risks contaminating the vial.
What gauge are they?
Fine-gauge insulin needles, suited to drawing from a reconstituted vial.

Still stuck?

Message the team on Telegram and we will sort it out, usually within minutes.

Message the team on Telegram

Need syringes?

1ml (100 unit) insulin syringes, ten per pack, shipped with your order.

View syringes
For research use only. Everything on this page describes laboratory handling of research materials: volumes, concentrations, storage and shipping. It is not medical advice, not a dosing recommendation, and not a claim of any effect in humans. Evra Peptides products are not for human or veterinary consumption, nor for diagnostic or therapeutic use. You must be 18 or over to order.
Support