A1C to Blood Sugar Converter
Translate your A1C into glucose numbers.
A1C to Blood Sugar Converter
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What This Calculator Does
The A1C to Blood Sugar Converter translates your hemoglobin A1C percentage into estimated average blood sugar levels in both mg/dL and mmol/L. This helps people with diabetes understand their A1C in terms of daily glucose numbers.
How It Works
The ADAG study established that eAG (mg/dL) = 28.7 x A1C - 46.7. The mmol/L result divides by 18. This formula is endorsed by the American Diabetes Association.
Example
An A1C of 7.0% converts to an estimated average blood sugar of 154.2 mg/dL or 8.6 mmol/L.
Formula
eAG = 28.7 x A1C - 46.7Reading the Results
Avg Blood Sugar (mg/dL)
Your estimated average blood glucose in mg/dL, the unit used by most US glucose meters.
Avg Blood Sugar (mmol/L)
Your estimated average blood glucose in mmol/L, the unit used in most other countries.
Frequently Asked Questions
What is a normal A1C?
Below 5.7% is normal. 5.7% to 6.4% indicates pre-diabetes. 6.5% or above on two separate tests indicates diabetes.
How often should A1C be tested?
If your results are stable, every 6 months. If managing diabetes or changing treatment, every 3 months.
Does A1C reflect daily glucose swings?
No. A1C is a 2-3 month average and does not show highs and lows. Continuous glucose monitors capture the variability A1C misses.