Convert Laboratory A1C Into Estimated Average Glucose

How to Use This Tool

Apply the published ADAG relationship to A1C reported as a percentage. A1C percentages and home glucose readings use different scales, making them difficult to compare directly.

What A1C to eAG actually establishes

eAG is a population-based estimate; anemia, hemoglobin variants, pregnancy, kidney disease and red-cell turnover can change the relationship. The page returns estimated average glucose in mg/dl from the measurements named below; A1C to eAG does not verify how they were collected or combine them with symptoms, examination findings and medical history.

Equation and input contract for A1C to eAG

Estimated average glucose in mg/dL equals 28.7 × A1C percent − 46.7. The required entries are Laboratory A1C; values should come from the same dated observation, specimen or record unless a label explicitly calls for different dates.

• For A1C to eAG, Laboratory A1C uses the example 7 %; replace it with the value and unit from the same record.

Using estimated average glucose in mg/dl safely

Compare with the clinician's laboratory interpretation and glucose records rather than adjusting medicine from the conversion. For A1C to eAG, an unexpected answer should prompt a check of units, dates, transcription and the original measurement method. Do not adjust medicine, feeding, fluids, exercise, screening or treatment to make the result match an expected value.

The page-specific limit of A1C to eAG

The equation does not validate the A1C assay, diagnose diabetes or account for conditions that alter red-cell lifespan. Preserve that limitation with any saved estimated average glucose in mg/dl. A reference interval or action threshold still depends on the patient, collection method, laboratory and clinical setting, none of which this arithmetic selects automatically.

Evidence reviewed for A1C to eAG

The attached reference is NGSP — A1C and estimated average glucose. It supports the equation, definition or measurement practice used for estimated average glucose in mg/dl, while the original report and a licensed pediatrician, physician, pharmacist or other relevant professional remain authoritative for interpretation.

Emergency boundary

Do not use a calculator during a possible emergency. Severe breathing difficulty, blue or gray color, seizure, fainting, new confusion, stroke symptoms, inability to wake or rapid deterioration require urgent local medical help.

Privacy and repeatability for A1C to eAG

A1C to eAG runs in the current browser tab without requesting a name, login or medical-record connection. Keep identifying details out of the fields, preserve the original units and remember that extra decimal places cannot repair an uncertain measurement.