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Chart no. 10

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HbA1c Test Results (%) & Their Plasma Glucose Equivalents (mmol/L)
NGSB HbA1c &  DCCT data correlation for plasma calibrated meters
Switch to IFCC HbA1c (mmol/mol)       Switch to estimated Average Glucose (eAG) correlation       View all charts
HbA1c 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9
Glucose 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4
HbA1c 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9
Glucose 5.6 5.8 6.0 6.2 6.4 6.6 6.8 7.0 7.2 7.4
HbA1c 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9
Glucose 7.6 7.8 8.0 8.2 8.4 8.6 8.8 9.0 9.2 9.4
HbA1c 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9
Glucose 9.6 9.8 10.0 10.2 10.4 10.6 10.8 11.0 11.2 11.4
HbA1c 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9
Glucose 11.5 11.7 11.9 12.1 12.3 12.5 12.7 12.9 13.1 13.3
HbA1c 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9
Glucose 13.5 13.7 13.9 14.1 14.3 14.5 14.7 14.9 15.1 15.3
HbA1c 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9
Glucose 15.5 15.7 15.9 16.1 16.3 16.5 16.7 16.9 17.1 17.3
HbA1c 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9
Glucose 17.5 17.7 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3
HbA1c 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9
Glucose 19.5 19.7 19.9 20.1 20.3 20.5 20.7 20.9 21.1 21.3
HbA1c 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9
Glucose 21.5 21.6 21.8 22.0 22.2 22.4 22.6 22.8 23.0 23.2

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Wallet-sized chart

Chart posted for general educational use.  Data represent averages.  Individual values may vary.  

Consult your healthcare professional for interpretation of test results.

Conversion: HbA1c = (Plasma Glucose + 4.29) / 1.98
Plasma Glucose = (HbA1c * 1.98) - 4.29

Reference:
Curt L. Rohlfing, BES, Hsiao-Mei Wiedmeyer, MS, Randie R. Little, PHD, Jack D. England, Alethea Tennill, MS and David E. Goldstein, MD "Defining the Relationship Between Plasma Glucose and HbA1c, Analysis of glucose profiles and HbA1c in the Diabetes Control and Complications Trial," Diabetes Care 25:275-278, 2002.  Abstract  

Home meter several years old?  It may read whole blood glucose.  Click here to convert HbA1c to whole blood glucose.  More info on plasma glucose vs. whole blood glucose.

What reading is desirable?  Your glycemic target should be individualized for you and reflect an agreement between you and your clincian.  Click here for the joint position of the American Diabetes Association and the European Association for the Study of Diabetes.

Page created October 30, 2009 and last updated May 1, 2012

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