There are multiple tests to determine if you have high blood sugar. Some common tests include a fasting sugar test, post-meal test, and HbA1c). Below is the list of different blood sugar levels.
Normal
For the fasting sugar test, 70-100 mg/dl value is a normal range. For the post-meal test, below 140 mg/dl value after two hours of consuming glucose is a normal range.
Early diabetes
For the fasting sugar test, 101-126 mg/dl value is a sign of early diabetes. For the post-meal test, 140-200 mg/dl value after two hours of consuming glucose is an indication of this condition.
Diabetic
For the fasting sugar test, over 126 mg/dl value is an evidence of established diabetes. For the post-meal test, over 200 mg/dl value after two hours of consuming glucose is a confirmation of having this health condition.
Once you are aware of the levels, a blood sugar calculator can help you understand if you have early signs of the disease or it has progressed further.