I was just asking if people knew how too? I know how too just was interested with other people
As Azure mentioned, it's not the question you're asking, but some of the responses that are the issue.
Artificial insulin should be used with a tremendous level of respect and no one on this forum is qualified to give specific recommendations on dosage. You should be working with your healthcare team to figure out your carb:insulin ratio.
Remember that our bodies each react differently to different foods meaning some people are more/less sensitive to certain types than others.
I'm in a very unusual situation given that I'm a type 1 honeymooner and I'm VERY sensitive to insulin. Consequently, my carb ratio is somewhere in the 35-40g per 1unit of insulin range(and possibly even more than 40g). That's incredibly low compared to most diabetics and if I tried to followed someone else's carb counting plan it could potentially kill me (too much insulin).
How I count carbs (which doesn't mean you should too):
1.) count total carbohydrates from nutrition label (I don't use apps like MyFitnessPal)
2.) subtract grams of fiber (our bodies cannot convert fiber into energy, but some people claim it still affects their blood sugar)
3.) subtract grams of sugar alcohol (at first, my doctor recommended I count 50% of the sugar alcohol content, but I've found it doesn't affect my blood sugar).
4.) I also have to consider the glycemic index of the carbs I'm eating. A sugar soda with 40g carbs would affect my blood sugar much faster than a sweet potato with 40g of carbs.
5.) Some people also have to account for the protein they eat as protein can be converted into glucose through the process of gluconeogenesis. I personally don't but many do.
Long story short: you're talking about an incredibly complex formula that needs to be customized to you and your body. There are a ton of different variables and some people have to consider even more than others. If you're looking for an easier method, I'd speak with your doctor about the Accu-Chek Aviva Expert. Your doctor can help you program it to assist with carb counting and insulin correction. Many people find it very helpful.