Skip to main content
UNDERSTANDING YOUR READINGS

HbA1c Chart Explained

A1C is reported as a percentage, but it can also be translated into an estimated average glucose number to make it easier to relate to meter readings.

6 min read
Simple HbA1c chart showing percentages and estimated average glucose
Photo via AhmadArdity / Pixabay (opens in a new tab)
A1CEstimated average glucose (mg/dL)
6%126
7%154
8%183
9%212
10%240
11%269
12%298

These estimated average glucose values can help translate a laboratory percentage into a number that looks more familiar if you use a glucometer. They are estimates, not a replacement for your actual readings.

Why your meter average may not match perfectly

A1C is influenced by more than the readings you happen to capture with a meter. If you only check at certain times, your meter log may miss highs or lows. Conditions affecting red blood cells can also make A1C less accurate.

Do not chase a chart number without considering the person behind it. Your goal should be individualized.

Frequently asked questions

Is an A1C of 7% equal to a blood sugar of 154 mg/dL all day?

No. Around 154 mg/dL is an estimated average. Actual glucose naturally moves above and below that number throughout the day.

Related reading