Convert your hemoglobin A1C to estimated Average Glucose and understand your diabetes risk.
eAG (mg/dL) = (A1C × 28.7) - 46.7
eAG (mmol/L) = eAG (mg/dL) ÷ 18
Based on the ADAG study (Nathan et al., 2008) and endorsed by the ADA and EASD.
Your Classification
Your A1C is in the diabetes range. Consult a healthcare provider for management strategies.
154
mg/dL
Est. Average Glucose
8.6
mmol/L
Est. Average Glucose
Risk Level
High risk of complications without management
7%
| A1C (%) | eAG (mg/dL) | eAG (mmol/L) | Category |
|---|---|---|---|
| 5.0 | 97 | 5.4 | Normal |
| 5.5 | 111 | 6.2 | Normal |
| 6.0 | 126 | 7 | Pre-diabetes |
| 6.5 | 140 | 7.8 | Diabetes |
| 7.0 | 154 | 8.6 | Diabetes |
| 7.5 | 169 | 9.4 | Diabetes |
| 8.0 | 183 | 10.2 | Diabetes |
| 8.5 | 197 | 10.9 | Diabetes |
| 9.0 | 212 | 11.8 | Diabetes |
| 10.0 | 240 | 13.4 | Diabetes |
Bars show the upper threshold for each A1C category. Normal: <5.7%, Pre-diabetes: 5.7-6.4%, Diabetes: ≥6.5%
This tool is for informational purposes only and does not constitute medical advice or diagnosis. The eAG conversion is based on the ADAG study and provides an estimated average glucose value. Actual blood glucose readings may vary. Always consult with a qualified healthcare professional regarding any health concerns or before making changes to your treatment plan. A1C tests may be less accurate for individuals with certain blood conditions such as anemia or hemoglobin variants.
Hemoglobin A1C (HbA1c) measures the percentage of glycated hemoglobin in your blood, reflecting average blood sugar levels over the past 2-3 months. Unlike daily glucose tests that provide a snapshot, A1C gives a long-term view of blood sugar control and is the standard test for diabetes diagnosis and management.
Regular A1C testing helps diagnose diabetes, monitor treatment effectiveness, and predict complication risk. The ADA recommends testing at least twice yearly for stable patients and quarterly for those with changing therapy or poor glycemic control. Lowering A1C by just 1% reduces the risk of microvascular complications by up to 40%.
For most non-pregnant adults with diabetes, the ADA recommends an A1C target below 7%. Less stringent goals (<8%) may be appropriate for those with limited life expectancy or advanced complications. Always follow your healthcare provider's individualized targets for optimal diabetes management.
Hemoglobin A1C (HbA1c) is a blood test that measures your average blood sugar levels over the past 2-3 months. Unlike daily glucose tests that give a snapshot at a single moment, A1C provides a longer-term picture of your glucose control.
The test works by measuring the percentage of hemoglobin — a protein in red blood cells that carries oxygen — that is coated with sugar (glycated). The higher your blood sugar levels, the more hemoglobin will be glycated.
Estimated Average Glucose (eAG) translates your A1C percentage into the same units (mg/dL or mmol/L) that you see on your daily glucose meter. This makes it easier to understand how your A1C relates to the everyday blood sugar readings you're familiar with.