Vial to Units

100 units to mL

100 units is 1 mL on a U-100 insulin syringe. 100 units is 1 mL, so divide units by 100. 1 mL is also 1 cc.

100 units on different syringes

Units are a marking, not a fixed volume. The volume depends on the syringe type printed on the barrel.

Syringe100 units =Capacity
U-100, 0.3 mL barrel · 30 units1 mLDoes not fit
U-100, 0.5 mL barrel · 50 units1 mLDoes not fit
U-100, 1 mL barrel · 100 units1 mLFits
U-40 · 40 units = 1 mL2.5 mLDifferent scale

Units to mL around 100 units

UnitsmL on a U-100 syringemL on a U-40 syringe
30 units0.3 mL0.75 mL
40 units0.4 mL1 mL
50 units0.5 mL1.25 mL
75 units0.75 mL1.875 mL
100 units1 mL2.5 mL

What 100 units contains

Enter your vial and the water added to see the amount in 100 units.

mg
mL

Enter the vial size and the water you added.

Arithmetic only. This tool does not recommend a dose; use the one your prescriber gave you.

Questions

How many mL is 100 units?

1 mL on a U-100 insulin syringe. 100 units is 1 mL, so divide units by 100.

Is 100 units the same volume on every syringe?

No. On a U-100 syringe 100 units is 1 mL. On a U-40 syringe, where 40 units is 1 mL, 100 units is 2.5 mL. Check which type is printed on the barrel.

How many cc is 100 units?

1 cc. A cc and a mL are the same volume.

How many mg is 100 units?

That depends on the concentration of the liquid. 1 mL holds 5 mg at 5 mg/mL and 10 mg at 10 mg/mL.

Which insulin syringe holds 100 units?

Any U-100 syringe with a capacity of 100 units or more. The smallest standard barrel that fits is 1 mL (100 units). Smaller barrels have wider spacing between marks, which makes them easier to read.

For the amount at each concentration, see 100 units to mg.

Nearby conversions

Calculators with vial-size presets