Insulin: Intensive Multiple Daily Injections (MDI)  -BETA

Home > Calculators >Intensive Multiple Daily Injections (MDI)

Insulin may be given by Multiple Daily Injections (MDI) or by Continuous Subcutaneous Insulin Infusion (CSII) (insulin pump). MDI requires at least four injections of insulin per day: At bedtime, before breakfast, lunch, and dinner. ).

The calculator below will estimate the basal insulin , meal related insulin doses (boluses),and the insulin to carbohydrate ratio (I:CR) also known as the carbohydrate-to-insulin ratio (CIR).
 required based on the woman's current weight , gestational age, and type of diabetes as recommended by the 2012 California Diabetes and Pregnancy Program Sweet Success Guidelines [1] .To use the calculator  enter the patient's weight, select the units /kg of insulin to give using the table below and press the 'calculate' button.

Current Weight    Insulin dose     
Total Daily carbohydrates grams

Weeks of Gestation

 Insulin U/kg  actual body weight

Type 1 *

Type 1* with BMI > 30 , Type 2**, or
uncontrolled GDM***

Week 1 to 17 0.3 to 0.5 0.7 to 0.8
Weeks 18 to 24 0.6 to 0.7 0.8 to 1.0
Weeks 25 to 32 0.8 to 0.9 0.9 to 1.2
Weeks 33 to 38 0.9 to 1 1.2 to 2.0
Postpartum 0.3 to 0.5 0.5 to 0.7

*Type 1 diabetes, the body does not produce insulin.
**Type 2 diabetes the body is resistant to insulin
***GDM Gestational diabetes
^ The I:CR is the number of grams of carbohydrate that are covered by 1 unit of insulin. The I:CR = Total daily carbohydrates grams divided by total daily dose of insulin. A typical Sweet Success diet provides 225 grams of carbohydrate daily.


1 . Shields, L and Tsay, GS. Editors, California Diabetes and Pregnancy Program Sweet Success Guidelines for Care. Developed with California Department of Public Health; Maternal, Child and Adolescent Health Division; revised edition, July, 2012. Guidelines for Care, California Diabetes and Pregnancy Program,2012. p 48  


All calculations must be confirmed before use. The suggested results are not a substitute for clinical judgment. Neither nor any other party involved in the preparation or publication of this site shall be liable for any special, consequential, or exemplary

Home | About | Disclaimer | Privacy | Contact | Sitemap