Since  June 2011, the way HbA1c values are reported has switched from a percentage to a measurement in mmols/mol. To make sense of the new units and compare these with old units and vice versa, use our HbA1c units converter.

Why did HbA1c units change?

The old, percentage  way of reporting HbA1c values is known as the DCCT (Diabetes Control and  Complications Trial) units.

The new mmols/mol values are known as the IFCC (International  Federation of Clinical Chemistry) units.

Click on the image link below to access this converter.