HbA1c to plasma glucose (DCCT data correlation)

Chart no. 4

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HbA1c Test Results (%) & Their Plasma Blood Glucose Equivalents (mg/dl)

DCCT data correlation

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	65	69	72	76	79	83	86	90	93	97
HbA1c	5.0	5.1	5.2	5.3	5.4	5.5	5.6	5.7	5.8	5.9
Glucose	101	104	108	111	115	118	122	126	129	133
HbA1c	6.0	6.1	6.2	6.3	6.4	6.5	6.6	6.7	6.8	6.9
Glucose	136	140	143	147	151	154	158	161	165	168
HbA1c	7.0	7.1	7.2	7.3	7.4	7.5	7.6	7.7	7.8	7.9
Glucose	172	175	179	183	186	190	193	197	200	204
HbA1c	8.0	8.1	8.2	8.3	8.4	8.5	8.6	8.7	8.8	8.9
Glucose	207	211	215	218	222	225	229	232	236	240
HbA1c	9.0	9.1	9.2	9.3	9.4	9.5	9.6	9.7	9.8	9.9
Glucose	243	247	250	254	257	261	264	268	272	275
HbA1c	10.0	10.1	10.2	10.3	10.4	10.5	10.6	10.7	10.8	10.9
Glucose	279	282	286	289	293	297	300	304	307	311
HbA1c	11.0	11.1	11.2	11.3	11.4	11.5	11.6	11.7	11.8	11.9
Glucose	314	318	321	325	329	332	336	339	343	346
HbA1c	12.0	12.1	12.2	12.3	12.4	12.5	12.6	12.7	12.8	12.9
Glucose	350	353	357	361	364	368	371	375	378	382
HbA1c	13.0	13.1	13.2	13.3	13.4	13.5	13.6	13.7	13.8	13.9
Glucose	386	389	393	396	400	403	407	410	414	418

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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 Blood Glucose + 77.3) / 35.6
Plasma Blood Glucose = (HbA1c * 35.6) - 77.3

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 blood 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