A1c to eAG Calculator

Convert HbA1c percentage to estimated average glucose in mg/dL and mmol/L using the ADAG formula.

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Input Parameters

Enter details for calculation.

Estimated Avg Glucose

154 mg/dL
mmol/L:8.6
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Expert Tip

A1c reflects ~3-month average glucose. A 1% change in A1c โ‰ˆ 28.7 mg/dL change in average glucose.

Calculation Methodology & Details

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Formula

eAG (mg/dL) = 28.7 ร— A1c โˆ’ 46.7

Standardized ADAG conversion. Same formula as the eAG calculator but presented as A1c-to-glucose direction.

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Important Disclaimer

The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.

How A1c to eAG Works

Follow these steps to use this calculator:

1

Enter A1c

Input your HbA1c percentage.

2

Read Average Glucose

View in both mg/dL and mmol/L.

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Detailed Insights & Expert Guide

โ„น๏ธ About this Calculation

This clinical diabetes calculator assists with blood glucose monitoring, HbA1c conversion, glycemic load estimation, and insulin sensitivity evaluation based on standard endocrinology guidelines.

Variable Glossary

Input

Glucose & Insulin Values

Fasting glucose (mg/dL or mmol/L), HbA1c percentage, carbohydrate intake, or insulin units.

Parameter

Clinical Metrics

Estimated average glucose (eAG), insulin resistance index (HOMA-IR), or correction factor ratios.

How to Calculate Step-by-Step

1

Step 1

Select your input units (mg/dL vs mmol/L) or clinical measurement type.

2

Step 2

Enter recent lab results or current blood glucose readings.

3

Step 3

View the calculated HbA1c/eAG conversion, glycemic impact, or risk score immediately.

FAQ

What is the relationship between HbA1c and eAG?
HbA1c measures average blood sugar over the past 2-3 months. The ADA formula eAG = 28.7 ร— A1C - 46.7 converts this percentage into a daily blood glucose reading in mg/dL.
How is HOMA-IR interpreted for insulin resistance?
A HOMA-IR score below 1.0 indicates optimal insulin sensitivity, while scores above 1.9-2.5 suggest early to significant insulin resistance.
Can I use this calculator for medical insulin dosing?
Calculations are for educational and informational tracking. Insulin therapy must always follow specific prescriptions and sliding scales provided by your treating physician.