The normal A1C level is below 5.7% . A level of 5.7% to 6.4% indicates prediabetes, and a level of 6.5% or more indicates diabetes. However, A1C target levels vary by each persons age, race, and other factors, and your target may be different from someone else's. As people get older, their HbA1c increases, regardless of whether or not they have diabetes. The following table shows the age-related A1C increase with non-diabetes:...