You cannot make a direct conversion of insulin IU to ml. It depends on the concentration of insulin in the vial you are using.
One commonly used concentration is 100 IU/ml, (sometimes called "U100") but this is NOT true for all insulin. If the concentration is 100 IU/ml, then each ml contains 100 IU and the conversion is 100 units = 1 ml.
If you are referring to standard U100 insulin, there would be 100 units per ml (same as cc), or 300 units in 3 ml. A milliliter (ml) is a measure of volume, while a cubic centimeter (cc) is a measure of three dimensional space. In the case of water at standard temperature and pressure (STP) of 4 degrees Centigrade and one atmosphere of pressure, one cc is the same as one ml. u500 insulin would be five times as concentrated
1000 units
100
This is not always the same! Most insulin sold for humans is concentrated at 100 units per ml (U100 insulin). But some insulin is not. In the case of U100 insulin, however, 1 cc equals 1ml equals 100 units so 40 units equals 0.4ml
100.5
In a 1 mL insulin syringe, the markings typically represent units of insulin, not milliliters. The number of units you would draw up in a 1 mL insulin syringe depends on the concentration of the insulin you are using. Common insulin concentrations are 100 units/mL and 50 units/mL. If you are using insulin with a concentration of 100 units/mL and you want to draw up a certain number of units, you simply draw up that number of units on the syringe. For example, if you want to draw up 10 units of insulin, you would fill the syringe to the 10 unit mark on the syringe. If you are using insulin with a concentration of 50 units/mL, then each unit on the syringe represents 2 units of insulin. So, to draw up 10 units of insulin in this case, you would fill the syringe to the 5 unit mark. Always make sure to use the correct insulin concentration and syringe to accurately measure and administer your insulin dose. If you are unsure about the concentration or how to use the syringe, it's important to consult with a healthcare professional or pharmacist for guidance.
Generally 1000 units. This goes for humalog and lantus.
Insulin is measured in "units".
Don't increase your insulin intake without talking to your doctor.
liter (L), mililiter (mL), and centimeter (cm).
4000 units in patients with insulin antibodies
One mg of pure Human Insulin has 26 units in it ;that means ONE unit Insulin weighs 0.038 mg by weight !
There are 100 units in a CC. 1 CC = 1 mL So, 5 units is 5/100 (1/20, .05) of a CC.