OK the chart I was looking for was replaced with what I posted above, which explains better as A1C is same % for USA and Canada. So you can read the information there. So you do not have the comparison of both USA and Canadian values though

I used this site at times in the past which helped a lot. It is also good to see the different stages of diabetes
https://mymedicalscore.com/hemoglobin-a1c-levels/

OK will have to look for the chart i used to have as it appears to no longer exist on this chart Will post once i find it

Green levels are normal non diabetic numbers (or numbers doctors want diabetics to be in if on medications such as insulin).

Yellow is Pre Diabetes sometimes doctors will not treat at this stage, diet can help

Red is diabetes levels which requires medications to bring down to at least yellow or even better green zone

Left column is A1C in % values

The middle column is USA values in mg/dl

The right column is Canada and UK values in mmol/L

So according to this chart if you maintain your daily average sugar levels below 7.8 you are out of the danger zone of permanent damages to multiple issues a diabetic can get, (this is the whole day average which can be seen on a CGM only).

Hence why the goal is to try to keep levels below 7.8 at all times and this is especially true for the 2 hrs post meals also.

A1c Levels | What does my A1c Score Mean? - MyMedicalScore

https://mymedicalscore.com/hemoglobin-a1c-levels/

The magic number for sugar levels is 18 :
4 to 6 Canadian and UK = 4X18 = (USA 72), 6X18 = (USA 108)
if someone in USA posts a number such as USA 126 you need to divide it by 18 = 7

Hence magic number being 18, if someone of USA post a number you divide it by 18, if a Canadian posts a number you multiply by 18.

Now this only work with sugar levels.

The A1C is a % and not a sugar level so USA and Canada use the same %, but UK now has a different number which you can look up online I believe.

In other words for those living in USA when they see us post our numbers sometimes they believe it is an A1C % but it is not.

Canadian system uses the mmol/L, as for USA uses the mg/dl when it comes to sugar levels, hence the difference. I tend to type in my Can numbers as example 7.4 mmol/L = 7.4 X 18 = (USA 133 mg/dl) I put USA value in ().

Hope this helps