A1C to Glucose Table: Estimated average glucose (mg/dL) by HbA1c
Reference table of estimated average glucose (mg/dl) for A1C to Glucose across a range of hba1c values — exact, engine-computed figures you can read off at a glance.
A1C to Glucose Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Estimated average glucose (mg/dL)
154
- Estimated average glucose (mmol/L)
- 8.6
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the A1C to Glucose Calculator
The A1C to Glucose Calculator works out your estimated average glucose (mg/dl), along with 1 related figure in an instant. Enter hba1c and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the hba1c.
- Read off your estimated average glucose (mg/dl), together with estimated average glucose (mmol/l) — the calculator updates automatically, with no button to press.
Formula
The A1C to Glucose Calculator uses the formula:
Estimated average glucose (mg/dL) = 28.7 × HbA1c - 46.7
Worked example
For example, with hba1c of 7%, the estimated average glucose (mg/dl) is 154.
| HbA1c | 7% |
|---|
| Estimated average glucose (mg/dL) | 154 |
|---|---|
| Estimated average glucose (mmol/L) | 8.6 |
Results are estimates for educational use, not professional advice.
Key terms explained
- Mean
- The average of a set of numbers — their sum divided by how many there are.
Frequently asked questions
Use estimated average glucose = 28.7 × A1C − 46.7 mg/dL. An A1C of 7% is about 154 mg/dL, or 8.6 mmol/L.
HbA1c reflects your average blood glucose over the past 2 to 3 months, shown as a percentage. It is a key measure for managing diabetes.
Below 5.7% is generally normal, 5.7–6.4% is prediabetes and 6.5% or higher indicates diabetes. Discuss your targets with your doctor.
No. This is for general information only. Always follow the interpretation and targets your healthcare provider gives you.
The A1C to Glucose Calculator uses the formula: Estimated average glucose (mg/dL) = 28.7 × HbA1c - 46.7. For example, with hba1c of 7%, the estimated average glucose (mg/dl) is 154.
Enter the hba1c. Read off your estimated average glucose (mg/dl), together with estimated average glucose (mmol/l) — the calculator updates automatically, with no button to press.
Related guides
How to Calculate A1C to Glucose: Formula, Steps & Examples
Learn how to calculate A1C to Glucose — the formula explained step by step, with worked examples and a free calculator to check your answer.