How do you convert units of U-100 insulin to milliliters?

Our question this week was:

Dr. Debra –I have a husky that is a diabetic. He gets 30 units of Humulin NPH insulin every 12 hours. It is a U-100 insulin and I have U-100 syringes and 1 ml syringes. I'm actually out of U-100 syringes and wondered if I can us a ml. How many milliliters are 30 units?

Beverly H.

Answer

Hi Beverly – thanks for your email. It is possible to convert units to milliliters. Please be very careful when doing this type of calculations. The U-100 means there are 100 units in 1 milliliter.

30 units of a U-100 insulin are equal to 0.3 milliliters (0.3 ml).

I have a chart that will help you. Go to: How to Convert U-100 Insulin in Units to Milliliters.

A couple more articles that might be helpful to you are Insulin, Home monitoring or the Diabetic Dog and Diabetes Mellitus in Dogs.

Best of luck!

Dr. Debra

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