What is the total range for blood sugar tested before meals and after meals?

I have moved your post to a medical area. I have no idea why you posted it in the forum help area.

Also you titled it askme.com which of course was a great site that closed public questions/answers years ago.

I have given the question a new title and moved it

Not only did you post in the wrong area (forum Help is clearly marked ONLY for questions about using this site) but your question is very unclear. Can you clarify what you want to know?

A diabetic?

You should shoot for 80 mg/dl for morning fasting levels and <150 2 hours after a meal.

SHooting for 80-150 before meals is indivualistic.
If your insulin resistant, then shoot for 80
If insulin sensitive shoot for 150.

You doc should give you a good range.

These are US measurements.

It's important to test 1-2 hrs after a meal once in a while.