"1 unit of insulin will cover 10g of carbohydrates" This varies significantly from patient to patient actually. The same goes for basal rates (how much insulin

"1 unit of insulin will cover 10g of carbohydrates" This varies significantly from patient to patient actually. The same goes for basal rates (how much insulin you need to maintain a healthy blood glucose level excluding what you eat). As you mentioned, weight is a big factor but so are other things like age, sex, diet, activity level, stress level, and just how well your body reacts to the insulin. Some people respond very well to artificial insulin while others just don't for some reason. I believe it can also depend on how long you've been using insulin. Your body can slowly stop responding as well as it used to. The numbers you came up with as an average sound pretty reasonable, but it's important to remember that daily dosage will vary quite a bit between individuals.