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Chart no. 7

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HbA1c test (%) & estimated Average Glucose (mmol/L)
NGSP HbA1c & eAG for plasma calibrated meters
Switch to IFCC HbA1c (mmol/mol)       Switch to DCCT data 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 3.8 3.9 4.1 4.2 4.4 4.6 4.7 4.9 5.0 5.2
HbA1c 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9
Glucose 5.4 5.5 5.7 5.8 6.0 6.2 6.3 6.5 6.6 6.8
HbA1c 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9
Glucose 6.9 7.1 7.3 7.4 7.6 7.7 7.9 8.1 8.2 8.4
HbA1c 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9
Glucose 8.5 8.7 8.9 9.0 9.2 9.3 9.5 9.7 9.8 10.0
HbA1c 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9
Glucose 10.1 10.3 10.4 10.6 10.8 10.9 11.1 11.2 11.4 11.6
HbA1c 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9
Glucose 11.7 11.9 12.0 12.2 12.4 12.5 12.7 12.8 13.0 13.2
HbA1c 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9
Glucose 13.3 13.5 13.6 13.8 13.9 14.1 14.3 14.4 14.6 14.7
HbA1c 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9
Glucose 14.9 15.1 15.2 15.4 15.5 15.7 15.9 16.0 16.2 16.3
HbA1c 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9
Glucose 16.5 16.6 16.8 17.0 17.1 17.3 17.4 17.6 17.8 17.9
HbA1c 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9
Glucose 18.1 18.2 18.4 18.6 18.7 18.9 19.0 19.2 19.4 19.5

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

Consult your healthcare professional for interpretation of test results.

Conversion: HbA1c = (2.59 + Plasma Glucose) / 1.59
Plasma Glucose = (1.59 * HbA1c) - 2.59

Reference:
David M. Nathan, MD, Judith Kuenen, MD, Rikke Borg, MD, Hui Zheng, PhD, David Schoenfeld, PhD, Robert J. Heine, MD "Translating the A1c Assay Into Estimated Average Glucose Values," Diabetes Care 31:1473-1478, 2008.  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 September 14, 2000 and last updated May 1, 2012

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